OffOf vs Liquid Apollo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OffOf
This app simplifies percentage calculations for shopping discounts and finding a percentage of a number. It offers a clean interface with satisfying sound and haptic feedback for a delightful user experience.
- Calculate percentage OFF
- Calculate percentage OF
- Shopping discount calculations
- Mechanical keyboard sounds
- Haptic feedback
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A beautiful percentage calculator. OffOf helps you calculate to percentage OFF of a particular number, and the percentage OF a particular number. OffOf is NOT a full calculator. Your device already comes with a great calculator. OffOf is a Percentage Calculator ONLY. • 35% OFF Instantly know how much you're going to spend while shopping. What is the cost of that $18.99 t-shirt when its 35% off? OffOf makes it easy to calculate. Simply enter 35% as the "Percentage" and 18.99 as the "Amount" and OffOf will show you how much you'll be spending after the discount. • 16% OF What is 16% of 2,458? OffOf will get you that answer instantly. Just enter 16% as the "Percentage" and 2,458 as the "Amount" and you'll know right away. • Real, satisfying mechanical keyboard sounds • Delightful haptic feedback on button presses and more
Liquid Apollo
Access a wide range of AI language models, both locally on your device and through cloud APIs. This app allows you to chat with open-source models, connect to your own hosted LLMs, or utilize services like OpenRouter for broad model access.
- Local LLM support
- OpenRouter integration
- Custom backend connections
- Private AI chat
- Access to open-source models
- Connect to hosted LLMs
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Chat with private, local AI models, connect to every open source AI, or your own locally-hosted private LLMs. Apollo is your own customizable client for accessing language models from all around the web. Local model support (powered by LEAP, a Liquid AI product): run smaller LLMs privately and securely on-device. OpenRouter support: bring an OpenRouter API key to chat with every model on the web. Just sign in by creating an account over at OpenRouter and paste it in to Apollo to access nearly every model, from open source models like Meta Llama 3, to closed source models like OpenAI’s ChatGPT-4. Custom Backend support: want ChatGPT at home? Run an LLM on your computer with tools like LM Studio or Ollama and connect to it with Apollo to host your own private ChatGPT-like mobile app for your family.
Screenshots
Verdict
The clearest difference is price: Liquid Apollo at Free against OffOf's $0.99. Liquid Apollo also leads on update cadence (every 10 days vs every 59 months) and ratings volume (653 vs 11). OffOf's advantage is device support (5 vs 3). On rating, review sentiment, 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
Liquid Apollo is free to download; OffOf costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.6 for OffOf against 4.5 for Liquid Apollo. That said, the two scores are not equally well evidenced: Liquid Apollo has 653 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 61% of OffOf's written reviews are positive against 68% of Liquid Apollo's.
OffOf ships an update every 59 months, Liquid Apollo every 10 days. Both last shipped on October 18, 2026.
| Parameter | OffOf | Liquid Apollo |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.6 (11 ratings) — better | 4.5 (653 ratings) |
| Positive reviews | 60.7% of reviews | 68.2% of reviews — better |
| Number of ratings | 11 | 653 — better |
| Update frequency | Every 59 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Mac, Apple Watch, Vision Pro — better | iPhone, iPad, Mac |
| Requires iOS | 17.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 5 MB | 162 MB |
| Age rating | 4+ | 12+ |
| Developer | Daeo Corp. Software | Liquid AI, Inc. |
Customer experience
OffOf
Liquid Apollo
User reviews
OffOf
From 11 App Store ratingsWhat we love
- ✨ Gorgeous design
- 👍 Simple and useful utility
- 💯 Best percentage calculator
- ✅ Does what it says
- 💡 Beautifully minimalist
Room to improve
- ❌ Not updated
- ⚠️ Abandoned app
- 📉 No longer works
- 💔 Incompatible with iOS
- ⏳ Outdated
Liquid Apollo
From 653 App Store ratingsWhat we love
- 🚀 Great app
- 🚀 Works well with OpenRouter
- 🚀 Excellent for running local models
- 🚀 Convenient one-time purchase
- 🚀 Clean and intuitive UI
Room to improve
- 🐛 Crashes frequently
- 🐛 Glitches when editing messages
- 🐛 Inconsistent message formatting
- 🐛 Slow performance with larger conversations
- 🔒 Unable to disable app transport security
Bugs and requests
OffOf
Reported bugs
3 issues- Not compatible with new iOS updates
- App no longer opens/works
- Freezes and force closes
Requested features
5 requests- Make it a fully functional calculator
- Update to new software/iOS versions
- Show final price after discount
- Auto clear fields on tap
- Update for X screens
Liquid Apollo
Reported bugs
6 issues- Unable to download Liquid Models
- Deleted locally installed models
- OpenRouter support crashes the app
- Voice list doesn't load all available voices
- Backspace lag leading to unintended text deletion
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- Inconsistent behavior when using code blocks
Requested features
10 requests- Add support for more open-source models (e.g. Gemma 3)
- Implement image generation and upload functionality
- Allow scheduling of asynchronous tasks
- Integrate with Hugging Face model repository
- Provide built-in prompt library
Show 5 moreShow fewer
- Add MCP (Multimodal Conversation Protocol) support
- Enable direct OpenAI API integration
- Improve voice chat functionality
- Add option to delete all chat history
- Implement search and filtering for chat history
In-app purchases
OffOf
No in-app purchases
Liquid Apollo
No in-app purchases
