# Cumbersome: AI LLM API Client — user reviews > 26 indexed App Store user reviews of Cumbersome by Folding Sky Co, rated 4.90/5 from 66 ratings. - Source: https://appshunter.io/ios/app/cumbersome-ai-llm-api-client/id6753016821/reviews - App overview in markdown: https://appshunter.io/ios/app/cumbersome-ai-llm-api-client/id6753016821.md - Rating breakdown: 5★ 62 · 4★ 4 · 3★ 0 · 2★ 0 · 1★ 0 ## Newest reviews (10 of 26) ### 5/5 — Very awesome, but.. *2026-05-22, version 1.48.0* The app itself is pretty cool! And very nice and easy to use for Local LLMs, but I do have an issue.. some APIs actually provide free-to-use, with no api key required… and the app needs an API key, so im asking if we can get update to make it not needed or whatever. Overall, Thanks! ### 5/5 — Great app! *2026-05-16, version 1.47.0* I have looked around for different LLM API Clients for a while now and this one is definitely the best one I’ve tried by far. It has sync with iCloud so I can use it with my Mac, headless search (didn’t even know that was possible), and easy access to all the models you want (I use DeepInfra). Honestly can’t believe you give it away for free but I’m glad you do :) ### 5/5 — Works great *2026-05-11, version 1.46.0* Well done! Thanks! ### 5/5 — Veeru *2026-05-08, version 1.45.0* Works excellent with AirLLM models ### 5/5 — Excellent *2026-04-25, version 1.42.0* Works great with open router. Well done! Thanks dev. ### 5/5 — Well Done *2026-04-08, version 1.40.0* The developer obviously uses their own app. It’s smooth, does exactly what it says it does, and is for real free (atm). I have a deep appreciation for passion projects that kick butt, especially when the dev is generous enough to share with the rest of us. If you have api keys, I highly recommend this app. ### 5/5 — Thoroughly professional *2026-03-08, version 1.33.1* Amazing free app if you know enough to get an OpenRouter api. Really well done. And check out the dev’s blog. Knows his stuff. ### 5/5 — Great way to use api keys *2026-02-13, version 1.27.0* Solid way to use api keys from OpenAI and Claude instead of paying per subscription. Interesting features that I haven’t see before too. ### 5/5 — Great API AI app *2025-11-15, version 1.11.0* Been using this across all my iDevices. Easy straight forward to use and syncing of your chats. Dev is actively updating adding features and any bug fixes. Highly recommend. ### 5/5 — Face/Off mode is a game changer *2025-10-12, version 1.2.0* Okay so the face/off mode is pretty great. It gives me 3 responses back from Claude and/or OpenAI and then judges the best. This has been a life saver for really nitty gritty detailed document work for me. ## Most critical reviews (10 lowest-rated) ### 1/5 — Not coding plan *2026-08-02, version 1.61.0* Not z.ai coding plan ### 3/5 — 优势是免费、手机电脑同步 *2026-07-01* 轻量化、清晰顺滑、免费、接入友好，有几个小缺憾：1. 长文本输入输出的时候有概率出现滑动卡顿、闪屏、显示故障。2. 侧栏 ui 的颜色有些刺眼，对于一个大量阅读的 app 来说最好还是配色风格温和专业一些。3. 添加 provider 之后无法修改，调试换端点稍有点麻烦，但问题不大。 **Developer response:** Thanks for the detailed feedback. I will add a theme picker so you can adjust the colors, and I'm working on the scrolling and display glitches. I'll also look into making providers editable. ### 3/5 — Odd choices for support *2026-02-26, version 1.30.0* Great UI and multi-provider support, but missing a critical feature: custom base URL for OpenAI-compatible APIs. Many providers implement the OpenAI standard (Synthetic, Azure, gateways, self-hosted backends). Without base URL override, this app is OpenAI-specific rather than OpenAI-compatible. Adding configurable endpoint support would unlock far more providers and make this a serious power-user tool. ### 4/5 — No macOS 15 local search support? *2026-07-15, version 1.57.0* Everything is great except for no macOS 15 local search support. Is this a technical limitation? ### 4/5 — 优势是免费、手机电脑同步 *2026-07-02, version 1.54.0* 轻量化、清晰顺滑、免费、接入友好。有几个小缺憾：1. 长文本输入输出的时候有概率出现滑动卡顿、闪屏、显示故障。2. 侧栏 ui 的颜色有些刺眼，对于一个大量阅读的 app 来说最好还是配色风格温和专业一些。3. 添加 provider 之后无法修改，调试换端点稍有点麻烦，但问题不大。 ### 4/5 — Nice app for API use *2025-11-03, version 1.7.0* Really happy with this app. Has a few customization settings and the UI is straightforward. Gets the job done. The Dev seems to be keeping it updated even with it being a free app. If you need an app for using your API keys, I recommend this. ### 5/5 — Exactly what I wanted *2026-08-07, version 1.63.0* Great job Peter. I’ve only been using the app for a couple of days, but it’s exactly what I wanted and was very easy to set up. ### 5/5 — The Perfect Blend *2026-08-01, version 1.61.0* This LLM client’s approach is the perfect blend of simplicity and complexity. For example, it’s simple and has a straightforward conversation history but an individual chat can easily be exported in full JSON for another agent to use if you need to take a conversation to the next level. Or how it uses iCloud for seamless sync. Peter rocks! ### 5/5 — My favourite AI app in iOS *2026-07-27, version 1.59.0* Let’s you use Ollama Cloud and Open Router so you can switch between models at will. Web search supported well with both and the app has been improving really fast since I started using it. ### 5/5 — Best phone llm source *2026-07-05, version 1.54.0* Clean design, just works. I supplied a openrouter key. PDF parsing works perfectly, as well as browser use. Installed it on my MBP too, and found all my chats. I use it more than claude now ## Most praised reviews (6 highest-rated) ### 5/5 — Just the right amount of complexity *2026-06-27, version 1.53.0* Reading the history of this developer (hi, Peter!), I shouldn’t be surprised at how well this app is put together. It integrates complexity very well. It thoughtfully fills gaps between what models offer and clients typically provide. Plus it’s just really (really) fast to start and sync. ### 5/5 — Exactly what I needed *2026-06-23, version 1.52.0* I’ve been using this app since it came out. I’ve long wished for certain features and hoped for continued updates. It’s worked fine, however, the past 5 versions or so have finally given me the features I’ve been waiting for the whole time and it’s amazing. Separate system prompts, chat scoped system prompts,, toggleable parameters, more fixes to the streaming text Views, all the newer OpenRouter backend tool support. He even added COMPACTION! That’s amazing! Thank you so much! Love this app. ### 5/5 — Simply outstanding *2026-06-21, version 1.51.0* The future of AI is with API key usage. Cumbersome does that flawlessly. I’ve brought my monthly AI costs through subs down from 30$ a month to 5$ every few months using open router. It really doesn’t get better than this. ### 5/5 — Excellent LLM client *2026-06-06, version 1.49.0* I’ve been using local LLMs through openwebui for a while, but the lack of a proper iPad client makes the usability hard. Cumbersome is an excellent alternative to being able to access models you host on your own network. If you use VPN or tailscale, you’ll always have access to these models. ### 5/5 — REGENARATION *2026-05-29, version 1.48.0* pls pls pls add a regeneration feature ### 5/5 — Amazing *2026-05-29, version 1.48.0* This is the best AI (API) app on the App Store. After weeks of searching and dealing with countless issues in other apps, I finally found one that gets everything right. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*