Theo8080 vs Cactus Chat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Theo8080
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Theo8080 is a private, on-device AI assistant for people who want to use AI more personally and more privately on iPhone and iPad. Your prompts and conversations stay on your device, not on someone else’s server. Theo8080 lets you download local models, chat privately, and shape how the assistant responds to match your needs. With Theo8080, you can: • Chat with local AI models on your iPhone or iPad • Download models from Hugging Face, a widely used repository for AI models • Keep your prompts and conversations on device • Adjust response style and behavior with model settings • Review and manage your conversation history • See helpful performance details like response time and generation speed • Use vision-capable models to chat about photos from your library Theo8080 gives you control over settings like temperature, context, and system prompt, so you can fine-tune the experience while keeping everything local. Built for a fast, native experience, Theo8080 supports efficient on-device AI on compatible Apple devices. But please keep in mind that AI can make mistakes, so always check important information and avoid relying on open models for certainty.
Cactus Chat
Engage in private conversations with an AI directly on your device. This application runs offline, ensuring your data remains secure and local. Developers can also utilize it to test and compare the performance of different large language models.
- Offline AI conversations
- Private data storage
- Developer LLM benchmarking
- Runs directly on device
- Free to use
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Offline, private AI. Cactus Chat lets you talk to AI, directly on your phone. This means it's free, runs offline, and your data stays on your device. If you're a developer, use Cactus to benchmark the latency and throughput of various LLMs.
Screenshots
Verdict
The clearest difference is rating: Theo8080 at 5.0 against Cactus Chat's 4.5. Theo8080 also leads on update cadence (every 2 days vs monthly). Cactus Chat's advantage is in-app purchases (none vs 2) and ratings volume (6 vs 1). On price, ads and device support 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. Theo8080 sells 2 in-app purchases, starting at $2.99 per 7 days. Cactus Chat asks for nothing beyond the download.
Theo8080 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Cactus Chat has 6 ratings behind it against 1, so its average is the more settled of the two.
Theo8080 ships an update every 2 days, Cactus Chat monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Theo8080 | Cactus Chat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (6 ratings) |
| Positive reviews | — | 80.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 2 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.5 | 15.1 — better |
| Further details — not scored | ||
| Size | 22 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | phi & co. | Roman Shemet |
In-app purchases
Theo8080
- Weekly Access$2.997 Days
- Monthly Access$4.991 Month
Cactus Chat
No in-app purchases









