# Snapper — Self-hosted trading copilot > Self-hosted trading copilot (iPhone/iPad app by Mateusz Klatt.) - Source: https://appshunter.io/ios/app/snapper/id6759247555 (this page in markdown: same URL + `.md`) - Developer: [Mateusz Klatt](https://appshunter.io/developer/1877636620) - Category: Finance, Productivity - Price: Free - Age rating: 17+ - Requires: iOS 26.2 · 7 MB - Languages: American English, Albanian, Arabic, Armenian, Bangla, Bosnian, Burmese, Croatian, Czech, Danish and 35 more - Released: 2026-05-12 - Data updated: 2026-08-11 - User reviews in markdown: https://appshunter.io/ios/app/snapper/id6759247555/reviews.md ## What is Snapper? 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. ## Version history (last 4 releases) ### 3.1.0 — 2026-08-09 Snapper 3.1 adds My Desks in Settings so signed-in users can see their desk memberships and authorized users can attach an existing viewer by username. Sign-in is now resilient when a self-hosted backend introduces new permissions. This release also includes reliability fixes for process controls and AI-review error alerts. ### 3.0.0 — 2026-07-31 Snapper 3.0.0 is the biggest update yet — the full trading console, now native on iOS. • Eight new screens: Signals, System Health, Backtests, Processes, AI Reviews, Strategies, User Administration, and AI Integration. • New P&L Timeline inside Positions: cumulative net, realized, and unrealized P&L with honest data-quality disclosure — values that cannot be proven render as gaps, never as fabricated zeros. • Live updates across Signals, Processes, Strategies, and AI Reviews — screens refresh automatically as trading activity happens. • Process lifecycle controls for operators: start, stop, and restart managed processes directly from the app. • AI Review inbox for delegate accounts: approve or reject pending trade reviews on the go, with an optional rationale. • Signals: filter by strategy and export to CSV. • Read-only viewer access now sees the full operational picture: positions, orders, signals, health, and portfolio state — with every mutation control safely hidden. • Alerts open directly from their notifications, every list supports pull-to-refresh, and dozens of fixes across navigation, charts, and localization in all 45 languages. ### 2.0.2 — 2026-05-29 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. ### 1.0 — 2026-05-12 No release notes. ## More apps by Mateusz Klatt - [Vesta](https://appshunter.io/ios/app/vesta/id6777403135) All apps by Mateusz Klatt: https://appshunter.io/developer/1877636620 --- *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 2026-08-11.*