ThumbleAI vs YGen
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ThumbleAI
This app assists content creators in quickly designing eye-catching thumbnails for videos. Upload an image, describe your desired aesthetic, and receive several design choices tailored for various video formats. Streamline your workflow and test more creative concepts directly from your mobile device.
- AI-powered thumbnail generation
- Upload photos or video frames
- Describe desired thumbnail aesthetic
- Multiple design options
- Optimized for long-form and Shorts
- Repeatable workflow
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ThumbleAI helps YouTube creators generate scroll-stopping thumbnails in seconds. Upload a photo (or a frame from your video), describe the vibe you want, and get multiple high-impact thumbnail options designed for both long-form videos and Shorts. Make thumbnails faster, test more ideas, and stay consistent with a repeatable workflow—right from your phone.
YGen
Effortlessly design professional YouTube thumbnails using AI. Simply describe your vision, and the app generates eye-catching, click-worthy images optimized for video content. It offers features like character swapping and concept brainstorming to enhance your creative process.
- AI thumbnail generation from descriptions
- Character and element swapping
- Voice input for hands-free operation
- AI creative assistant for concept brainstorming
- Multiple thumbnail variants per generation
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You have the video idea. Give it a thumbnail that feels like your channel. YGen helps you create and refine YouTube thumbnails with AI, from the first concept to the image you save and share. START WITH AN IDEA Describe the scene, mood and headline you want. Choose a horizontal or vertical format and generate up to three variations to compare. MAKE IT YOURS Add your own photo or a visual reference. Use Character mode to place your subject in a new thumbnail concept. Import a YouTube thumbnail as a starting point for your own design. REFINE WITH WORDS Ask for changes to the text, background, colors or composition. Keep useful versions together in your gallery and return to them when you need a new direction. GET PAST THE BLANK PAGE Brainstorm concepts and titles with the creative assistant. Review AI feedback on your thumbnail's visual clarity and composition. AI feedback is guidance, not a prediction of views or click-through rate. SAVE AND SHARE Keep your creations in one gallery, save them to Photos or share them from your iPhone. Built for gaming, travel, podcasts, tutorials, reviews and channels without an on-camera host. SUBSCRIPTIONS A paid subscription is required for image generation and editing. Starter and Creator include sparks; each generated or edited image uses sparks. See the app for current prices and allowances. Subscriptions renew automatically unless canceled in your Apple account settings. No free trial is included. Use photos and reference material you have permission to use. YGen is not affiliated with YouTube or Google. Terms: https://ygen.app/legal/terms Privacy: https://ygen.app/legal/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: ThumbleAI at none against YGen's 4. ThumbleAI also leads on ratings volume (5 vs 1) and device support (3 vs 1). YGen's advantage is update cadence (every 4 days vs every 6 months). On price, rating, ads and iOS requirement 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. YGen sells 4 in-app purchases, starting at $14.99 per month. ThumbleAI asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for ThumbleAI against 5.0 for YGen. That said, the two scores are not equally well evidenced: ThumbleAI has 5 ratings behind it against 1, so its average is the more settled of the two.
ThumbleAI ships an update every 6 months, YGen every 4 days. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.
| Parameter | ThumbleAI | YGen |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 6 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.0 |
| Further details — not scored | ||
| Size | 43 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Tallhaven LLC | Spody Ai LLC |
Customer experience
ThumbleAI
YGen
In-app purchases
ThumbleAI
No in-app purchases
YGen
- Starter$14.991 Month
- Creator$44.991 Month
- Starter Yearly$99.991 Year
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- Creator Yearly$279.991 Year








