Complicator vs Knowto
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Complicator
Transform any REST API into a glanceable watch face complication. Display financial data, weather, server stats, and more directly on your wrist. Configure easily on your iPhone and view updates automatically on your Apple Watch.
- Fetch data from any JSON API
- Multiple data format options
- Customizable labels and font sizes
- Support for all complication styles
- Configure on iPhone, view on Apple Watch
- Add multiple data points
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Turn any REST API into a watch face complication. Track what matters to you at a glance. Features: • Fetch data from any JSON API • Multiple format options: currency, percentage, numbers, compact notation • Customizable labels and font sizes • Support for all complication styles: circular, rectangular, inline, and corner • Configure on iPhone, view on Apple Watch • Add multiple data points for different complications Perfect for tracking: • Financial asset prices • Weather data • Server stats • Smart home sensors • Fitness metrics • Any public API Simply enter a URL, specify the JSON path to your data, and Complicator does the rest. Your data refreshes automatically, keeping you informed without opening an app. Privacy: 100% on-device. No servers, no accounts, no data collection. Your configurations never leave your devices.
Knowto
Capture ideas instantly with a fast, local-first note-taking app. Organize thoughts naturally with threads, tags, and attachments. Access your notes offline with optional cloud sync.
- Always-ready composer
- Build on thoughts with threads
- Search and filter notes
- Attach photos and resources
- Local-first storage
- Background sync across devices
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Catch ideas before they disappear. Knowto is a fast, local-first notes app built around an always-ready composer. Write now, organize naturally, and return to any thought without fighting a complicated filing system. BUILD ON EVERY THOUGHT Turn a note into a thread when an idea keeps growing. Add follow-ups while keeping the original context close. FIND WHAT MATTERS Search your notes, add multiple tags, and filter your collection to surface the right thought quickly. KEEP USEFUL CONTEXT Attach photos and other resources to your notes. Expand a note when you need the full detail, or keep scanning through a clean, compact list. LOCAL-FIRST BY DESIGN Your notes stay available on your device. Sign in when you want background sync across iPhone, Mac, and web. Archive notes without losing them, then restore them whenever needed. Knowto keeps note taking immediate, calm, and connected. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Complicator at none against Knowto's 2. On price, rating, ratings volume and update cadence 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. Knowto sells 2 in-app purchases, starting at $0.99 per month. Complicator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Complicator against 5.0 for Knowto. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Complicator ships an update weekly, Knowto every 10 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.
| Parameter | Complicator | Knowto |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Weekly — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Tinker Labs AB | Lumik LLC |
In-app purchases
Complicator
No in-app purchases
Knowto
- Knowto Plus Monthly$0.991 Month
- Knowto Plus Yearly$9.991 Year









