# SimRa — Safety in Bicycle Traffic > Anonymous bicycle traffic and near-crash data collection for safety improvement. (iPhone/iPad app by David Bermbach.) - Source: https://appshunter.io/ios/app/simra/id1459516968 (this page in markdown: same URL + `.md`) - Developer: [David Bermbach](https://appshunter.io/developer/1707007284) - Category: Health & Fitness, Education - Price: Free - Age rating: 4+ - Requires: iOS 12.0 · 10 MB - Languages: American English, German (Germany) - Released: 2019-08-28 - Data updated: 2026-08-15 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/simra/id1459516968/reviews.md ## What is SimRa? Comparable to other major cities worldwide, Berlin aims to reduce traffic emissions. Foremost mechanism for this is to increase the share of bicycle traffic. However, polls show that a lack of safety and fear of accidents keeps people from using their bikes more frequently. Furthermore, it also quite hard from a city planning perspective to get a good overview of location, time, frequency, and kind of hazards in bicycle traffic since official accident statistics only cover crashes but do not provide information on near crashes. In this project, we collect – with a strong focus on data protection and privacy – data on such near crashes to identify when and where bicyclists are especially at risk. We also aim to identify the main routes of bicycle traffic in Berlin. To obtain such data, we have developed the SimRa app that uses GPS information to track routes of bicyclists and the built-in acceleration sensors to pre-categorize near crashes. After their trip, users are asked to annotate and upload the collected data in a fully anonymous way. The collected data offers detailed insights into bicycle traffic in Berlin (and other cities) and hazardous situations to public administrators and other interested entities so that the number of near crashes (and hence also crashes) can be reduced. The data can also be used to optimize traffic flows to make bicycle traffic more attractive. For the evaluation of data, we plan to cooperate with interdisciplinary partners such as city planning, interested citizens, but also the Berlin Senate Department for the Environment, Transport and Climate Protection. ## Key features - Anonymous data collection - GPS route tracking - Near-crash detection - User data annotation - Hazard identification - Traffic flow optimization ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/simra/id1459516968/reviews.md ### 1/5 — Keine Standort Aufzeichnung im Hintergrund *2023-06-15, version 1.8* Die Idee ist ja super. Aber es kann doch nicht sein, dass ich die App die gesamte Zeit auf haben muss, um Daten aufzuzeichnen. Wieso kann der App denn nicht immer Zugriff auf meinen Standort geben? ### 1/5 — Keine Sync. via Strava möglich. Bluetooth- Connection funktioniert ebenfalls nicht *2023-05-15, version 1.8* Die Software befindet sich offenbar noch in den Kinderschuhen. Eine Synchronisation mit Strava und den Bluetooth-Geräten ist nicht möglich. ### 2/5 — Bedienen unmöglich *2022-06-24, version 1.8* Es ist ein großer Fehler wenn man’s besonders stylisch machen möchte und dann die komplette Bedienenbarkeit in Hintertreffen gerät. Ich verstehe das man keine Button haben will aber dann müsste sich die Schrift von der Karte doch zumindest absetzen. Also Button oder grau hinterlegt und ich dieses komische wir wollen’s besonders stylisch haben. ### 5/5 — Tolles und wichtige Software *2022-02-24, version 1.8* … die hoffentlich aktiv weiterentwickelt werden wird. 🚴‍♂️❤️ ### 5/5 — Übersichtlich und einfach *2021-09-27, version 1.7* Eine tolle Möglichkeit, Fahrdaten zur Verbesserung der Radinfrastruktur beizutragen. Die Bedienung empfinde ich als einfach und intuitiv. ### 2/5 — Im schönen Mecklenburg Vorpommern ... *2021-03-29, version 1.6* ...nützt mir diese App gar nichts, denn dieses Bundesland scheint für die App nicht zu existieren. ### 3/5 — Routen abgebrochen | Langsames hochladen *2021-02-01, version 1.6* Ich sammle wirklich gerne die Daten für einen guten Zweck - jedoch mittlerweile nicht mehr mit dieser App. Die Routenaufzeichnung schmiert oft mitten bei der Fahrt ab und das Hochladen dauert auch eine Ewigkeit. Ich habe das Gefühl, das liegt den 1000 gespeicherten Kilometern. Sehr schade, ansonsten schön aufgebaut :) ### 5/5 — Top! *2020-08-04, version 1.6* Diese App tut mehr für den Radverkehr als Andi Scheuer ### 1/5 — Nutzt mir in Köln *2020-01-10, version 1.4* rein gar nichts ..... ### 5/5 — Tolles Projekt *2019-06-20, version 1.0* Vielen Dank! ## Frequently asked questions about SimRa ### How does SimRa protect user privacy? SimRa prioritizes data protection and privacy by collecting data anonymously. Users are asked to annotate and upload their trip data in a fully anonymous way after each ride. ### What kind of data does SimRa collect? SimRa collects GPS information to track bicycle routes and uses built-in acceleration sensors to pre-categorize near-crashes. This data helps identify hazardous situations and main cycling routes. ### Who benefits from the data collected by SimRa? The collected data provides insights into bicycle traffic and hazardous situations for public administrators, city planners, and other interested entities. This information can be used to reduce accidents and optimize traffic flows. ### On which devices can I use SimRa? SimRa is available for iPhone, iPad, and iPod devices, indicated by its support for these platforms. ### Is SimRa suitable for young children? SimRa has an age rating of 4+, suggesting it is appropriate for a wide range of users, including younger individuals. ### How often is SimRa updated? The latest version of SimRa is 1.9, and it was last updated on December 30, 2025, indicating regular maintenance and potential feature additions. ### Does SimRa have ads? No, SimRa does not contain advertisements. The app is free to use and does not display any ads to users. ### What is the primary goal of SimRa? The primary goal of SimRa is to increase the share of bicycle traffic by addressing the lack of safety and fear of accidents among cyclists. It aims to achieve this by identifying and mitigating hazardous situations. ## Version history (last 5 releases) ### 1.9 — 2025-12-30 bug fixes ### 1.8 — 2022-02-24 It is now possible to connect the OpenBikeSensor with SimRa to automatically add close pass incidents to the SimRa Rides. ### 1.7 — 2021-09-14 - In "Settings", it is now possible to activate the AI-supported incident detection - The profile region can now be automatically set - New announcement can be displayed as a pop up at app start - In the rides list menu, it is now possible to delete/upload rides by swiping to the left/right - In the rides list menu, it is now possible to export the ride (raw, GPS, GeoJSON, KML) by long tapping ### 1.6 — 2020-03-18 small bugfixes ### 1.5 — 2020-01-22 New statistics New regions: Region "Bochum" changed to "Ruhr area", added "Leipzig" ## Apps similar to SimRa | App | Rating | Price | Category | | --- | --- | --- | --- | | [Ride Safety](https://appshunter.io/ios/app/ride-safety/id6449769103) | — | Free | Health & Fitness | | [Summitree](https://appshunter.io/ios/app/summitree/id1560790983) | — | Free | Health & Fitness | | [LINDERA Mobility Analysis](https://appshunter.io/ios/app/lindera-mobility-analysis/id1323766047) | 5.0 (2) | Free | Health & Fitness | | [Klima-Taler](https://appshunter.io/ios/app/klima-taler/id6444569111) | — | Free | Health & Fitness | | [SIGMA RIDE](https://appshunter.io/ios/app/sigma-ride/id1509636449) | 4.7 (91) | Free | Health & Fitness | | [sanoanimal](https://appshunter.io/ios/app/sanoanimal/id1490457230) | — | Free | Health & Fitness | ## Related topics [plant identifier and care](https://appshunter.io/ios/topics/plant-identifier-and-care) --- *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 2026-08-15.*