# iOS Side Projects with Strong MRR Potential
## Research Report | February 20, 2026

---

## Executive Summary

This report identifies 7 high-potential iOS app categories that naturally fit subscription-based revenue models. These categories are selected based on:
- Proven user willingness to pay subscriptions
- Underserved or evolving niches
- Technical feasibility for solo founders
- Strong retention characteristics

---

## 1. AI-Powered Voice & Audio Tools

### App Concept
An AI voice cloning/note-taking app that records, transcribes, summarizes, and extracts action items from meetings, voice memos, or lectures. Think of it as "Voice Memos with AI superpowers."

### Why It Has MRR Potential
- **Clear value tiers**: Free tier with limits (5 min recordings), Pro tier for unlimited + AI features, Business tier for team collaboration
- **Recurring necessity**: Knowledge workers need this continuously
- **Network effects**: Teams can share transcripts, increasing stickiness
- **Charging range**: $6.99-$19.99/month based on features

### Target Audience
- **Primary**: Consultants, executives, journalists, students
- **Secondary**: Healthcare providers, legal professionals, podcasters
- **TAM**: ~50M knowledge workers in US alone

### Market Size & Competition
- **Market**: $4.5B voice recognition market (2024), growing at 17% CAGR
- **Competition**: Otter.ai ($16.99/mo), Rev (pay-per-use), Notion AI
- **Gap**: Simpler, mobile-first experience without desktop bloat

### Technical Complexity: ⭐⭐⭐ (Medium-High)
**Core Stack:**
- SwiftUI for modern iOS UI
- Whisper API or on-device transcription (Core ML)
- OpenAI/Claude API for summarization
- iCloud/Core Data for sync
- Background audio recording

**Build Time**: 3-6 months solo
**Key Challenges**: Audio processing efficiency, transcription accuracy, battery optimization

### MRR Potential Estimate
- **Conservative**: 1,000 subscribers × $9.99 = $9,990/month
- **Realistic**: 5,000 subscribers × $12.99 = $64,950/month
- **Success**: 15,000 subscribers × $14.99 = $224,850/month

---

## 2. Specialized Health & Wellness Trackers

### App Concept
A hyper-focused health tracker for specific conditions: migraine tracking with trigger analysis, fertility/period tracking with advanced symptom prediction, or gut health monitoring with meal correlation.

### Why It Has MRR Potential
- **Healthcare is sticky**: Users don't switch health apps lightly
- **Insurance/savings value**: Data justifies $10-20/month (cheaper than one specialist visit)
- **Regulatory moat**: Specialized knowledge creates barriers
- **Charging range**: $9.99-$14.99/month

### Target Audience
- **Primary**: Chronic condition sufferers seeking patterns
- **Secondary**: Health optimizers, biohackers
- **TAM**: 40M+ Americans with chronic migraines; 10M+ TTC actively

### Market Size & Competition
- **Market**: $13.4B digital health app market (2024)
- **Competition**: Flo ($9.99/mo), Migraine Buddy, Cara Care
- **Gap**: More intelligent insights, better data visualization, open data export

### Technical Complexity: ⭐⭐⭐ (Medium)
**Core Stack:**
- SwiftUI/HealthKit integration
- Machine learning for pattern recognition
- Custom data visualization
- CloudKit for sync
- Local notifications/reminders

**Build Time**: 2-4 months solo
**Key Challenges**: ML model accuracy, HIPAA considerations if handling medical data

### MRR Potential Estimate
- **Conservative**: 800 subscribers × $9.99 = $7,992/month
- **Realistic**: 3,000 subscribers × $12.99 = $38,970/month
- **Success**: 10,000 subscribers × $14.99 = $149,900/month

---

## 3. AI Photo Enhancement & Restoration

### App Concept
A photo enhancement app specifically for old photo restoration, colorization, and upscaling using on-device AI. Target: family historians, genealogists, estate managers.

### Why It Has MRR Potential
- **Project-based but recurring**: People discover new photos regularly
- **High perceived value**: Restoring family memories worth $10-30/month
- **Seasonal spikes**: Holidays, anniversaries drive usage
- **Charging range**: $4.99-$12.99/month

### Target Audience
- **Primary**: Genealogy enthusiasts (15M+ Ancestry.com users)
- **Secondary**: Family historians, estate managers, photography hobbyists
- **TAM**: 30M+ active genealogy researchers

### Market Size & Competition
- **Market**: $9.2B photo editing app market
- **Competition**: Remini ($9.99/week!), MyHeritage In Color, Adobe Photoshop
- **Gap**: Simpler workflow, one-tap restoration, affordable pricing

### Technical Complexity: ⭐⭐⭐⭐ (High)
**Core Stack:**
- SwiftUI + Core Image
- Core ML / Create ML for on-device models
- Photo library integration
- In-app purchases/subscriptions
- Background processing

**Build Time**: 4-6 months solo
**Key Challenges**: Model training/optimization, GPU memory management, high-quality results

### MRR Potential Estimate
- **Conservative**: 2,000 subscribers × $5.99 = $11,980/month
- **Realistic**: 8,000 subscribers × $9.99 = $79,920/month
- **Success**: 25,000 subscribers × $12.99 = $324,750/month

---

## 4. Niche Productivity & Focus Tools

### App Concept
A "digital bodyguard" app that blocks distractions across apps, enforces screen time limits, and provides deep work analytics. Differentiation: Works at the OS level, not just browsers.

### Why It Has MRR Potential
- **Addiction economics**: Fighting phone addiction = recurring need
- **Results-driven**: Users see immediate impact on productivity
- **Business model**: Free trial → annual subscription (better retention)
- **Charging range**: $4.99-$9.99/month

### Target Audience
- **Primary**: Remote workers, knowledge workers, ADHD community
- **Secondary**: Students, digital minimalists
- **TAM**: 35M+ remote workers in US, growing 15% annually

### Market Size & Competition
- **Market**: $98B productivity software market
- **Competition**: Freedom ($8.99/mo), Opal, Screen Time (built-in)
- **Gap**: Better iOS integration, smarter blocking, analytics

### Technical Complexity: ⭐⭐⭐ (Medium)
**Core Stack:**
- SwiftUI + Screen Time API (iOS 16+)
- VPN tunneling for app blocking
- Local notifications
- Swift Charts for analytics
- iCloud sync across devices

**Build Time**: 2-4 months solo
**Key Challenges**: iOS limitations on deep system access, Screen Time API restrictions

### MRR Potential Estimate
- **Conservative**: 1,500 subscribers × $4.99 = $7,485/month
- **Realistic**: 6,000 subscribers × $6.99 = $41,940/month
- **Success**: 20,000 subscribers × $8.99 = $179,800/month

---

## 5. Specialized Photography Assistants

### App Concept
A photography assistant app for specific niches: food photography lighting guide, real estate photo staging guide, or astrophotography planning with AR overlays.

### Why It Has MRR Potential
- **Professional value**: Saves time/money for creators
- **Skill development**: Continuous learning platform
- **Equipment tie-in**: Affiliate revenue + subscriptions
- **Charging range**: $7.99-$14.99/month

### Target Audience
- **Primary**: Content creators, small business owners, real estate agents
- **Secondary**: Photography enthusiasts, influencers
- **TAM**: 50M+ content creators globally

### Market Size & Competition
- **Market**: $16.8B creator economy tools market
- **Competition**: PhotoPills ($9.99), Sun Surveyor, niche YouTube tutorials
- **Gap**: Simplified workflow, integrated AR, actionable guidance

### Technical Complexity: ⭐⭐⭐⭐ (High)
**Core Stack:**
- SwiftUI + ARKit
- Core Location + MapKit
- Core Motion
- Photo library integration
- Cloud-based scene analysis

**Build Time**: 4-6 months solo
**Key Challenges**: AR precision, real-time calculations, sensor accuracy

### MRR Potential Estimate
- **Conservative**: 500 subscribers × $9.99 = $4,995/month
- **Realistic**: 2,500 subscribers × $12.99 = $32,475/month
- **Success**: 8,000 subscribers × $14.99 = $119,920/month

---

## 6. Habit & Routine Coaching Apps

### App Concept
A habit tracker that goes beyond checkboxes: AI-powered routine building with personalized coaching, accountability partnerships, and behavioral science integration.

### Why It Has MRR Potential
- **Behavioral lock-in**: Users invest in building streaks/habits
- **Community value**: Accountability partners increase retention
- **B2B potential**: Corporate wellness programs
- **Charging range**: $4.99-$12.99/month

### Target Audience
- **Primary**: Self-improvement enthusiasts, goal-setters
- **Secondary**: Corporate wellness programs, coaching clients
- **TAM**: $17.9B self-improvement market

### Market Size & Competition
- **Market**: $12.4B habit tracking/mHealth market
- **Competition**: Streaks ($4.99), Fabulous, Habitica, Noom
- **Gap**: Personalized AI coaching, better UX, community features

### Technical Complexity: ⭐⭐⭐ (Medium)
**Core Stack:**
- SwiftUI + WidgetKit
- Core ML for habit prediction
- CloudKit for sync
- Social features (GameKit or custom)
- Local notifications

**Build Time**: 3-5 months solo
**Key Challenges**: Retention mechanics, ML model for predictions, community features

### MRR Potential Estimate
- **Conservative**: 2,000 subscribers × $4.99 = $9,980/month
- **Realistic**: 8,000 subscribers × $7.99 = $63,920/month
- **Success**: 25,000 subscribers × $9.99 = $249,750/month

---

## 7. Privacy-First Security & Encryption Tools

### App Concept
A "digital vault" app for sensitive documents, passwords, crypto keys, and private notes with zero-knowledge architecture and on-device encryption only.

### Why It Has MRR Potential
- **Security anxiety**: Growing demand for privacy tools
- **Trust premium**: Users pay for security they can verify
- **Compliance angle**: B2B sales for GDPR/SOC2 compliance
- **Charging range**: $3.99-$9.99/month

### Target Audience
- **Primary**: Privacy-conscious individuals, journalists, activists
- **Secondary**: Small businesses, crypto holders, legal professionals
- **TAM**: 40% of consumers concerned about data privacy (1.2B+ people)

### Market Size & Competition
- **Market**: $223B cybersecurity market (small slice for consumer)
- **Competition**: 1Password ($7.99/mo), Bitwarden, Standard Notes
- **Gap**: Simpler UX, true zero-knowledge, better iOS integration

### Technical Complexity: ⭐⭐⭐⭐⭐ (Very High)
**Core Stack:**
- Swift + SwiftUI
- CryptoKit for encryption
- Keychain Services
- Face ID / Touch ID integration
- CloudKit (encrypted) or no-cloud architecture
- App Extensions (Share Sheet, AutoFill)

**Build Time**: 4-8 months solo
**Key Challenges**: Security audits, key management, compliance, browser extensions

### MRR Potential Estimate
- **Conservative**: 1,000 subscribers × $4.99 = $4,990/month
- **Realistic**: 5,000 subscribers × $6.99 = $34,950/month
- **Success**: 15,000 subscribers × $9.99 = $149,850/month

---

## Summary Comparison Table

| Category | Complexity | Build Time | Est. MRR (Realistic) | Competition |
|----------|------------|------------|---------------------|-------------|
| AI Voice Tools | ⭐⭐⭐ | 3-6 mo | $64,950/mo | Medium |
| Health Trackers | ⭐⭐⭐ | 2-4 mo | $38,970/mo | Medium-High |
| Photo Restoration | ⭐⭐⭐⭐ | 4-6 mo | $79,920/mo | Low-Medium |
| Focus/Blockers | ⭐⭐⭐ | 2-4 mo | $41,940/mo | Medium |
| Photo Assistants | ⭐⭐⭐⭐ | 4-6 mo | $32,475/mo | Low |
| Habit Coaching | ⭐⭐⭐ | 3-5 mo | $63,920/mo | High |
| Privacy Vault | ⭐⭐⭐⭐⭐ | 4-8 mo | $34,950/mo | Medium |

---

## Recommendations for Solo Founders

### 🏆 Top 3 Picks for MRR Potential + Feasibility

1. **AI Voice Tools** - High demand, clear value prop, manageable complexity
2. **Photo Restoration** - Underserved niche, high willingness to pay
3. **Habit Coaching** - Strong retention, growing market, good unit economics

### 🎯 Best for Beginners (Lower Complexity)

1. **Health Trackers** - HealthKit makes core features straightforward
2. **Focus/Blockers** - Screen Time API provides foundation

### 🚀 Highest Upside (Higher Risk)

1. **AI Voice Tools** - AI wave creates tailwinds
2. **Privacy Vault** - Growing concern, pricing power

---

## Key Success Factors

1. **Start Narrow**: Solve one problem really well before expanding
2. **Freemium Done Right**: Free tier should be useful but limited; paid should feel essential
3. **Annual Subscriptions**: Push for annual billing to improve retention and cash flow
4. **Build in Public**: Share progress on Twitter/Reddit to build an audience before launch
5. **Iterate Fast**: Ship MVPs in 4-8 weeks, then add features based on user feedback

---

## Resources

### Technical Resources
- [Apple's Subscription Guidelines](https://developer.apple.com/app-store/subscriptions/)
- [RevenueCat](https://www.revenuecat.com) - Subscription infrastructure
- [Superwall](https://superwall.com) - Paywall optimization

### Market Research
- [AppFigures](https://appfigures.com) - App store intelligence
- [Sensor Tower](https://sensortower.com) - Market data
- [Substack](https://substack.com) - Build an audience pre-launch

---

*Report generated: February 20, 2026*