Comparison

Theo8080 vs Cactus Chat

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Theo8080

Features
Read full description

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.

About

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.

Highlights
  • Offline AI conversations
  • Private data storage
  • Developer LLM benchmarking
  • Runs directly on device
  • Free to use
Features
Read full description

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

Theo80804 screens
Cactus Chat4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Theo8080 ships an update every 2 days, Cactus Chat monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Theo8080 versus Cactus Chat: the parameters behind the verdict, then further details
ParameterTheo8080Cactus Chat
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (6 ratings)
Positive reviews—80.0% of reviews
Number of ratings16 — better
Update frequencyEvery 2 days — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.515.1 — better
Further details — not scored
Size22 MB43 MB
Age rating4+4+
Developerphi & co.Roman Shemet

In-app purchases

2 purchases

Theo8080

Subscriptions2
  • Weekly Access$2.997 Days
  • Monthly Access$4.991 Month
None

Cactus Chat

No in-app purchases

Questions

Is Theo8080 free?
Theo8080 is free to download, with in-app purchases available.
Is Cactus Chat free?
Cactus Chat is free to download, with no in-app purchases.
Which has better reviews, Theo8080 or Cactus Chat?
Theo8080 is rated higher. Theo8080 averages 5.0 out of 5 from 1 ratings, while Cactus Chat averages 4.5 from 6 ratings.
Do Theo8080 or Cactus Chat have ads?
Neither Theo8080 nor Cactus Chat shows ads.
Which is updated more often, Theo8080 or Cactus Chat?
Theo8080 ships an update every 2 days, and Cactus Chat monthly. Most recently, Theo8080 was updated on October 24, 2026 and Cactus Chat on October 25, 2026.

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