Comparison

Open Minis vs SynoSync

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

Head to head
About

Open Minis

This AI agent runs locally on your device, taking actions like browsing the web, managing your schedule, and controlling smart home devices. It integrates deeply with iOS frameworks and allows you to bring your own API keys from various AI providers. Customize its capabilities with a skills system and enjoy persistent memory for a personalized experience.

Highlights
  • On-device AI agent
  • Multi-model AI provider support
  • Deep iOS framework integration
  • Built-in web browser
  • Customizable skills system
  • Persistent memory
  • Siri Shortcuts integration
Features
Read full description

Minis — Local-First On-Device AI Agent Minis is a local-first, on-device AI agent that goes beyond chat. All your data stays on your iPhone — nothing is uploaded to a server by default. Running locally means lower latency and stronger privacy, while the agent still takes real action: browsing the web, accessing your health data, managing your schedule, controlling your smart home, and automating complex tasks. Local-First AI Agent Unlike cloud-only chatbots, Minis runs directly on your device and keeps your data there. The agent executes multi-step tasks autonomously, using tools and native iOS frameworks to get things done — not just answer questions, and not just relay everything to the cloud. Multi-Model, Your Choice Bring your own API key. Choose from leading AI providers: • Anthropic Claude • OpenAI GPT • Google Gemini • DeepSeek • Kimi (Moonshot AI) • OpenRouter • Any OpenAI-compatible endpoint Deep iOS Integration The agent accesses Apple frameworks natively: • HealthKit — steps, heart rate, sleep, workouts, SpO₂ • Calendar & Reminders — create events, check availability, manage tasks • HomeKit — control lights, switches, scenes, and smart accessories • Photos — search, organize, and export from your library • Location & Maps — current location, directions, nearby POIs • Vision — OCR text recognition, object detection, barcode scanning • Speech — real-time transcription and text-to-speech • Weather — current conditions, hourly and daily forecasts Built-in Web Browser Navigate pages, take screenshots, extract content, fill forms, and interact with websites — all driven by the AI agent in the background. Skills System Import or create custom AI skills to extend the agent's capabilities. Share skills with others or build your own for specialized workflows. Persistent Memory The agent remembers your preferences, project context, and recurring patterns across sessions — building a personalized assistant that improves over time, all stored locally on your device. Siri Shortcuts Automate AI tasks with Siri and the Shortcuts app. Send prompts with file attachments, wait for results, and chain into complex workflows — all hands-free. Privacy by Design Your API keys and data stay on-device. Fine-grained permission controls let you decide exactly which personal data the agent can access. No account required. No data collected.

About

SynoSync

This app synchronizes files between your iOS device and Synology NAS, WebDAV, or SMB servers. It integrates seamlessly with the iOS Files app, offering multiple sync modes and conflict resolution options for efficient file management.

Highlights
  • Synology NAS, WebDAV, SMB support
  • iOS Files app integration
  • Server-to-Local sync
  • Local-to-Server sync
  • Two-Way synchronization
  • Flexible conflict resolution
  • Background syncing
Features
Read full description

SynoSync is a file synchronization tool crafted for iPhone and iPad, supporting Synology NAS, WebDAV, and SMB services. It is specifically designed to solve the long-standing issue where traditional sync software cannot flexibly integrate into the iOS "Files" app workflow. Simply log into your server, select a shared directory, and use the system file picker to specify a local target—allowing you to sync files to any authorized directory accessible by the Files app. The app supports three sync modes: Server-to-Local, Local-to-Server, and Two-Way synchronization, while offering flexible conflict resolution strategies (Keep Newer, Keep Local, Keep Remote, or Keep Both). With support for extended foreground syncing and automatic background syncing, it is the perfect tool for long-term maintenance of note libraries, document repositories, research data, and project files.

Screenshots

Open Minis4 screens
SynoSync4 screens

Verdict

The call

The clearest difference is in-app purchases: Open Minis at none against SynoSync's 1. Open Minis also leads on ratings volume (77 vs 2). SynoSync's advantage is update cadence (every 4 days vs weekly). On price, rating, review sentiment and ads 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. SynoSync sells 1 one-off in-app purchase. Open Minis asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Open Minis against 5.0 for SynoSync. That said, the two scores are not equally well evidenced: Open Minis has 77 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 97% of Open Minis's written reviews are positive against 100% of SynoSync's.

UpkeepUpdate frequency

Open Minis ships an update weekly, SynoSync every 4 days. The most recent releases landed on September 28, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Open Minis versus SynoSync: the parameters behind the verdict, then further details
ParameterOpen MinisSynoSync
PriceFreeFree
Rating4.9 (77 ratings)5.0 (2 ratings) — better
Positive reviews97.1% of reviews100.0% of reviews — better
Number of ratings77 — better2
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better16.4
Further details — not scored
Size133 MB20 MB
Age rating17+4+
Developer森 王成豪 董

Customer experience

Open Minis

All ratings77 ratings
Positive97.4%
Neutral1.3%
Negative1.3%
Written reviews69 reviews
Positive97.1%
Neutral2.9%
Negative0.0%

SynoSync

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Open Minis

No in-app purchases

1 purchases

SynoSync

One-time1
  • SynoSync-Plus$4.99

Questions

Is Open Minis free?
Open Minis is free to download, with no in-app purchases.
Is SynoSync free?
SynoSync is free to download, with in-app purchases available.
Which has better reviews, Open Minis or SynoSync?
SynoSync is rated higher. Open Minis averages 4.9 out of 5 from 77 ratings, while SynoSync averages 5.0 from 2 ratings.
Do Open Minis or SynoSync have ads?
Neither Open Minis nor SynoSync shows ads.
Which is updated more often, Open Minis or SynoSync?
Open Minis ships an update weekly, and SynoSync every 4 days. Most recently, Open Minis was updated on September 28, 2026 and SynoSync on September 12, 2026.

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