OmniPlan 4 vs Retain AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OmniPlan 4
This app offers robust project management capabilities, allowing users to view, edit, and organize complex projects. It provides tools for tracking progress, managing teams, and improving workflows with features like automatic scheduling and critical path highlighting.
- Automatic project scheduling
- Resource leveling
- Team collaboration
- Critical path highlighting
- Interactive Gantt timeline
- Network diagram view
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OmniPlan gives you the power to manage complexity by helping you view, edit, and organize projects. Easily track your progress, manage your team, and continuously improve your processes with powerful project management features including automatic project scheduling, resource leveling, collaboration, milestones, and critical path highlighting. View your project as an interactive Gantt timeline, a customizable project outline, or as a beautiful Network diagram. Manage simple or complex projects—all at a glance. Purchase OmniPlan once for full access to OmniPlan 4 on your Mac, iPad, iPhone, and Apple Vision Pro.
Retain AI
This app transforms voice memos, calls, and documents into organized tasks and drafts. It understands context and decisions to proactively generate content, allowing users to review and send.
- Voice memo to task conversion
- Call and document analysis
- Automated draft generation
- Contextual understanding
- Cross-device syncing
- User control over output
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Your best ideas don't wait for a desk. Capture a voice memo on the go and Retain turns it into organized tasks before you're back at your keyboard. You're in back-to-back calls. Decisions are made. Action items pile up. And then the real work begins. Retain changes that. It listens to your calls, reads your docs, and tracks your threads. It understands what just happened, not just the words but the decisions, the commitments, the context. Then it gets to work before you do. Right format. Right draft. Ready before you ask. Your job? Choose what to run with. Edit what you want. Hit send. That's it. What Retain does for you: Understands your calls, documents, and messages in real time. Predicts what you need to produce before you ask. Builds drafts automatically, in the right format. Keeps you in control of everything that goes out. Syncs your context seamlessly across all your devices.
Screenshots
Verdict
The clearest difference is rating: Retain AI at 5.0 against OmniPlan 4's 3.9. Retain AI also leads on in-app purchases (none vs 10). OmniPlan 4's advantage is update cadence (every 2 months vs every 7 months) and ratings volume (20 vs 2). On price and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OmniPlan 4 sells 10 in-app purchases, starting at $19.99 per month. Retain AI asks for nothing beyond the download.
Retain AI holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: OmniPlan 4 has 20 ratings behind it against 2, so its average is the more settled of the two.
OmniPlan 4 ships an update every 2 months, Retain AI every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | OmniPlan 4 | Retain AI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (20 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 23.5% of reviews | — |
| Number of ratings | 20 — better | 2 |
| Update frequency | Every 2 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac, Vision Pro — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 68 MB | 31 MB |
| Age rating | 4+ | 12+ |
| Developer | The Omni Group | Ryan Rapp |
Customer experience
OmniPlan 4
Retain AI
In-app purchases
OmniPlan 4
- Legacy Subscription$19.991 Month
- Legacy Subscription$199.991 Year
- Free Upgrade to v4 ProFree
- Free Upgrade to v4 StandardFree
- Upgrade to v4 Standard$99.99
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- Upgrade from Standard to Pro$99.99
- Unlock Standard$199.99
- Upgrade to v4 Pro$199.99
- Upgrade from Standard to Pro$199.99
- Unlock Pro$399.99
Retain AI
No in-app purchases









