LingoFuse vs Percevia
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
LingoFuse
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Lingo Fuse helps you learn languages using real content you care about. Turn YouTube videos into flashcards and custom decks, practise at your own pace, and track your progress. ~ What you can do β’ Generate language learning tasks from YouTube videos β’ Study with flashcards β’ Build and organise decks β’ Track your learning streak Whether youβre brushing up for travel, exams, or daily fluency, LingoFuse turns passive watching into active learning. Privacy & trust Weβre committed to handling your account and data responsibly. See our Privacy Policy in the app or on our website for details. Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Percevia
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A little more empathy for how others see. Percevia provides an educational simulation of how colors may change with different color vision characteristics. Point the camera at the world around you or choose a photo or video, switch between color vision types, and compare the result with the original. Features: β’ real-time camera simulation; β’ photo and video viewing without network uploads; β’ tap the camera button for a photo, hold it to record video; β’ protanomaly, deuteranomaly, and tritanomaly; β’ protanopia, deuteranopia, and tritanopia; β’ achromatomaly and achromatopsia; β’ three calculation models: Machado 2009, ViΓ©not 1999, and Brettel 1997; β’ multiple severity levels; β’ instant comparison with the original. Percevia grew out of something personal. My father lived with color vision deficiency, and my wifeβs father and our son live with it too. It became my way to understand their view of the world a little better, and to feel closer to them. Perhaps it resonates with someone in your life, too. All media is processed only on your device; a result reaches your photo library only when you save it yourself. The simulation is an approximate visualization. A mathematical model cannot fully represent another personβs subjective perception. Percevia is not intended for medical diagnosis. Privacy Policy: https://percevia.app/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: Percevia at none against LingoFuse's 1. Percevia also leads on update cadence (daily vs every 3 weeks). LingoFuse's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. LingoFuse sells 1 in-app purchase, starting at $4.90 per month. Percevia asks for nothing beyond the download.
LingoFuse ships an update every 3 weeks, Percevia daily. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.
| Parameter | LingoFuse | Percevia |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Daily β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.1 β better | 26.0 |
| Further details β not scored | ||
| Size | 44 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcin Aszyk | Cosmoshark |
In-app purchases
LingoFuse
- Individual$4.901 Month
Percevia
No in-app purchases









