Loci vs Subnotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Loci
This AI assistant runs entirely on your device, offering powerful on-device capabilities like calculations, reminders, and calendar integration. It supports various open-source models and features voice conversation and image understanding, all while prioritizing user privacy and environmental impact.
- On-device AI models
- Calculator and unit conversions
- iOS Reminders and Calendar integration
- Voice conversation mode
- Image understanding (OCR, classification)
- Apple Shortcuts integration
- Focus modes
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Loci is a private AI chat app for your iPhone. No account and no subscription. Download a model once and chat anywhere, even in airplane mode. If you want a ChatGPT alternative that keeps your conversations on your phone, this is it. NO SETUP, NO JARGON Loci checks your iPhone and picks a model that runs well on it. You never think about RAM, file sizes, or quantization. Open the app, download once and then start chatting. PRIVATE BY DESIGN Your chats, photos, and voice input are processed on your devices. Diagnostic sharing is optional and can be turned off in Settings. Downloaded models work in airplane mode. REAL MODELS, RUNNING LOCALLY Chat with well-known open models like Google's Gemma 4, Qwen 3.5, and Llama. Browse more anytime. Loci only offers models your phone can actually run. LINK TO YOUR MAC OR PC Run Loci on your Mac or PC too? Pair the two, and your iPhone can use the much larger models your computer runs. The power of a desktop, in your pocket, still on hardware you own. PHOTOS AND DOCUMENTS Attach a photo and ask what's in it. Add a PDF, Word file, or EPUB and ask questions about it. Reading happens on device. TOOLS THAT DO REAL WORK A calculator that computes instead of guessing. Unit conversions. Reminders and Calendar. Web search when you ask for it. A memory that carries your preferences from chat to chat. TALK INSTEAD OF TYPING Tap the waveform and speak. Loci answers out loud and keeps listening. Speech stays on your phone. MADE FOR THE TASK AT HAND Focus modes for coding, writing, studying, and brainstorming. Apple Shortcuts for automations. Available in English and Spanish. EASY ON THE PLANET Every cloud AI answer runs in a data center. Loci runs on the phone already in your pocket. Free. Offline. Yours.
Subnotes
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Subnotes is a plain-text notes and to-do list app for iPhone, iPad & Mac. Any line you write can become a task. • Thoughts and tasks, side by side — jot things down like a paper notebook, then switch views to see everything organized by priority, automatically. • Editing a task is just editing text • Recurring tasks and due dates • Link notes together to connect related thinking • Templates for weekly reviews, meeting notes, habit tracking, trip planning, and more. Note-taking and task planning are deeply personal — so Subnotes stores everything as plain text, not a proprietary format. Copy, paste, or export anytime. It also syncs privately over your own iCloud account: no signup, no account creation, no servers but Apple's. For iPhone, iPad, and Mac
Screenshots
Verdict
The clearest difference is update cadence: Loci at every 2 days against Subnotes's weekly. Loci also leads on iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Loci ships an update every 2 days, Subnotes weekly. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.
| Parameter | Loci | Subnotes |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (126 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 126 — better | — |
| Update frequency | Every 2 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 73 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Waldman | Martin Ramsin |
In-app purchases
Loci
No in-app purchases
Subnotes
No in-app purchases









