ThinkByte vs OfflineGPT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ThinkByte
This AI assistant operates entirely on your device, offering private and fast responses without internet access. It's ideal for brainstorming, learning, and getting writing support, ensuring your data remains secure and local.
- Fully offline AI operation
- Private and secure on-device data
- Instant AI responses
- Choice of local AI models
- Writing and learning support
- No accounts or tracking
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ThinkByte is an AI assistant that runs on your iPhone instead of in the cloud. Ask it a question, talk to it, or show it a photo, and it answers right on the device. Nothing connects to a server, so it works the same on a flight, on the subway, or anywhere with no signal. Your conversations stay on your phone and are never uploaded. Type or talk. Use the keyboard, or hold the mic and speak. ThinkByte takes voice and images, not just text. Choose your model. Download a small, fast model or a larger one for tougher questions, right from the app. More get added over time. Private by default. No account. No sign-up. Your chats never leave your phone. Anonymous diagnostics are optional and you can turn them off in Settings. Built for real life: Flights and travel Subways, basements, and dead zones Limited or expensive data plans Anyone who would rather keep their conversations off other people's servers Download ThinkByte and start chatting, fully offline.
OfflineGPT
This AI assistant operates entirely on your device, offering private and secure conversations and image generation without an internet connection. Experience fast, smart assistance for creativity, productivity, and learning, all while keeping your data completely private.
- Offline AI chat and image generation
- Private and secure local processing
- Fast response times
- Supports creativity and productivity
- No internet connection required
- No accounts or tracking
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HOW TO USE OfflineGPT: 1. Open the app — no internet required 2. Start chatting or generating images instantly Your private AI assistant, always available — even offline. WHY CHOOSE OfflineGPT? PRIVATE: Everything happens locally on your device. Your chats, prompts, and images never leave your phone. No accounts, no servers, no tracking — just you and your AI. OFFLINE: OfflineGPT works completely without an internet connection. Chat, brainstorm, or create stunning images anytime, anywhere. FAST: Powered by optimized on-device AI models, responses and images are generated in seconds — even faster than cloud-based AIs. SMART: Designed for creativity, productivity, and learning, OfflineGPT helps you write, think, and visualize — all while keeping your data secure. Experience the freedom of Private, Fast, Local AI with OfflineGPT today! Purchase required to access app features. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: OfflineGPT at 100% against ThinkByte's 50%. OfflineGPT also leads on rating (5.0 vs 4.1). ThinkByte's advantage is ratings volume (11 vs 1) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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. ThinkByte sells 1 one-off in-app purchase and OfflineGPT sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
OfflineGPT holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: ThinkByte has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of ThinkByte's written reviews are positive against 100% of OfflineGPT's.
ThinkByte ships an update fortnightly, OfflineGPT every 10 days. The most recent releases landed on September 13, 2026 and July 23, 2026 respectively.
| Parameter | ThinkByte | OfflineGPT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 11 — better | 1 |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 64 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | ByteInk L.L.C-FZ | Naz Kovalchuk |
Customer experience
ThinkByte
OfflineGPT
In-app purchases
ThinkByte
- Lifetime Premium$9.99
OfflineGPT
- Lifetime Access Special$7.00
- Lifetime Access$15.00









