Snapper
Self-hosted trading copilot
Only for iPhone
Free
iPhone
Snapper is the iOS companion for the Snapper trading platform — a native SwiftUI app that lets you watch positions, place orders, attach stops, and respond to alerts from your phone, against the backend you configure and control.
WHAT IT DOES
• View live positions, orders, executions, and balances across multiple wallets and exchanges.
• Place market and limit orders, attach stop-loss and take-profit brackets, and configure trailing stops — all with reduce-only safety on close-out flows.
• Receive instant push notifications for fills, stop-loss triggers, system warnings, and alert routing rules you control per-device.
• Manage alert preferences with per-(alert type, scope) overrides — quiet hours, mute timers, and minimum priority.
• Switch between live and paper trading modes; the app surfaces the (paper) tag everywhere a wallet is referenced so the two modes are never confused.
• Time-travel: replay historical bus state to inspect what your strategies saw at a given moment.
WHO IT'S FOR
Self-directed traders who run their own Snapper backend. The app is a thin client; it expects a Snapper-compatible API on the URL you configure. If you don't already run a Snapper backend, this app won't be useful to you on its own.
PRIVACY
Snapper is open source (MIT) and ships zero third-party SDKs — no analytics, no ad networks, no crash-reporting libraries. The app talks only to the backend you configured and to Apple Push Notification service (for alerts you opted into). Source code is at github.com/mateusz-klatt/snapper-ios. Privacy policy: snapper.ch/privacy-policy.html.
REQUIREMENTS
• A running Snapper backend (you provide the URL during sign-in).
• iOS 26 or later. iPhone only.
• Push notifications are optional; the app is fully usable without them.
NOT FINANCIAL ADVICE
Snapper is a trading interface, not a trading strategy. The app does not provide market analysis, trade recommendations, or financial advice. Markets carry risk; trade what you can afford to lose.
Ratings & Reviews
What's new since version 1.0:
• Snapper now ships in 45 languages, with a native-fluent translation pass and full right-to-left support for Arabic and Hebrew.
• Candlestick chart follows the East-Asian rising-red, falling-green convention by default in Chinese, Hong Kong, Japanese, and Korean locales. Western locales continue to use rising-green, falling-red. The behaviour is overridable in Settings → Financial color convention.
• Market Data improvements: instrument description banner with sector chip and per-locale text, related-instrument cross-exchange navigation, and pair statistics with cointegration scoring.
• Locale switcher on the login screen with country flag indicators, and stable Settings layout direction when switching between LTR and RTL languages.
• Sharper candle rendering at high data density on the latest iOS.
The developer, Mateusz Klatt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Financial Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Size
- 4.7 MB
- Category
- Finance
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
English and 44 more
- English, Albanian, Arabic, Armenian, Bengali, Bosnian, Burmese, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Irish, Italian, Japanese, Korean, Latvian, Lithuanian, Malay, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Spanish, Swahili, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
16+
- 16+
- Provider
Mateusz Klatt
- Mateusz Klatt has not identified itself as a trader for this app. If you are a consumer in the European Economic Area, consumer rights do not apply to agreements between you and the provider.
- Copyright
- © 2026 Mateusz Klatt