Comparison

Synapse Notes vs multi

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

Head to head
About

Synapse Notes

Features
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Synaps Notes is a private, on-device note app built for local AI. Write and organize notes directly on your iPhone. Chat with your own notes and documents using local AI models. Import PDFs, images, and text files with OCR support. Keep your data on-device by default, with optional Google Drive backup. No account is required to use the core features

About

multi

Features
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multi-ai is the fastest way to get answers from multiple AIs at once โ€” and a synthesized "best" final answer. WHY MULTI-AI?multi-ai is the fastest way to get answers from multiple AIs at once - and a synthesized best final answer. WHY MULTI-AI? Different AI models have different strengths. GPT-OSS is fast and free. Claude is great at nuance. Gemini handles long context. Instead of asking each one separately and comparing tabs, ask them all at once in multi-ai. Then let another AI read all the answers and synthesize the most useful conclusion. FEATURES - 100% FREE models: GPT-OSS (OpenAI's open-source GPT), Llama 3 & 4, Qwen, plus Gemini Flash and Claude Haiku - usable without payment. - 4 MODES: Single, Compare, Synthesis (A + B + a third AI that combines them), and Extended (4-5 AIs at once). - SMART SYNTHESIS: the synthesis column reads every response and gives you a wrap-up - what they agree on, what they disagree on, and a balanced final conclusion. - 9 LANGUAGES: English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese, Vietnamese - auto-detected. - BRING YOUR OWN KEY (optional): register your own API key for Claude, GPT, or Gemini and pay the provider directly. - PRIVACY-FIRST: we don't sell your data and we don't train AI on it. Delete your account anytime. Stop tab-hopping between AI tools. Ask once, compare, and decide with confidence. Different AI models have different strengths. GPT-OSS is fast and free. Claude is great at nuance. Gemini handles long context. Instead of asking each one separately and comparing tabs, ask them all at once in multi-ai. Then let another AI read all the answers and synthesize the most useful conclusion. FEATURES - 100% FREE models: GPT-OSS (OpenAI's open-source GPT), Llama 3 & 4, Qwen, plus Gemini Flash and Claude Haiku โ€” usable without payment. - 4 MODES: Single, Compare (two AIs side by side), Synthesis (A + B + a third AI that combines them), and Extended (4-5 AIs at once). - SMART SYNTHESIS: the synthesis column reads every response and gives you a wrap-up โ€” what they agree on, what they disagree on, and a balanced final conclusion. - 9 LANGUAGES: English, Korean, Japanese, Chinese, Spanish, French, German, Portuguese, Vietnamese โ€” auto-detected. - BRING YOUR OWN KEY (optional): register your own API key for Claude, GPT, or Gemini and pay the provider directly. - PRIVACY-FIRST: we don't sell your data and we don't train AI on it. Delete your account anytime. Stop tab-hopping between AI tools. Ask once, compare, and decide with confidence.

Screenshots

Synapse Notes4 screens
multi2 screens

Verdict

The call

The clearest difference is iOS requirement: multi at 15.0 against Synapse Notes's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
Synapse Notes versus multi: the parameters behind the verdict, then further details
ParameterSynapse Notesmulti
PriceFreeFree
Update frequencyEvery 2 daysโ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.015.0 โ€” better
Further details โ€” not scored
Size8 MB4 MB
Age rating4+4+
DeveloperCan Ahmet OzguvenJune Lee

In-app purchases

None

Synapse Notes

No in-app purchases

None

multi

No in-app purchases

Questions

Is Synapse Notes free?
Synapse Notes is free to download, with no in-app purchases.
Is multi free?
multi is free to download, with no in-app purchases.
Do Synapse Notes or multi have ads?
Neither Synapse Notes nor multi shows ads.

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