Comparison

Themis Black Box vs DashMap

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

Head to head
About

Themis Black Box

This app transforms your smartphone into a high-quality dashcam, offering advanced recording features like 4K resolution, HDR, and image stabilization. It includes a built-in speedometer, GPS logging, and watermarking for speed and location data, with easy file management and sharing options.

Highlights
  • 4K, 1080p, 720p recording resolutions
  • UltraWide, Wide, Tele camera support
  • HDR and OIS recording
  • Built-in speedometer and level
  • GPS location and speed watermarking
  • Easy file management and sharing
  • Camera direction switching
Read full description

Thank you for visiting Themis Black Box app. * It is *** STRONGLY RECOMMENDED *** to use with a COOLER for smartphones for the following reasons. - Due to the nature of the app that processes the video in real time, the device will overheat quickly. - Smartphones will be installed and used in harsh environments such as car dashboards. In addition, to reduce the effect of car vibration, it is recommended to use a cradle that adsorbs to the windshield. * Features of Themis - Supports 4K, 1080p, 720p recording resolutions and various FPS. - Supports UltraWide, Wide, Tele cameras. - Supports HDR (High Dynamic Range) recording. - Supports OIS (Optical Image Stabilization). - Provides clear recorded video frames even when driving in tunnels or at night. *** However, the smartphone's autofocus feature may malfunction on roads or in locations that are too dark, or if there are foreign substances (e.g., smudges, rainwater, etc.) on the windshield. - Built-in speedometer. - Built-in level to help horizontally align the camera. - Various information such as date, time, speed and address are added as a watermark at the top of the recorded video. - Supports search for location where video recording started by linking with Apple Maps and Google Maps. (However, if the region is set to Korea or the language is set to Korean, KakaoMap and NAVER Map are also supported.) - Easily switch camera direction to inside or outside the car with a long tap on the screen. - Supports starting and stopping recording using volume buttons or Bluetooth shutter. - Supports a red mark on the recorded video and the file in the Recorded File Browser screen by double-tapping the screen during video recording so that users can easily find the event they want to remember. - Supports displaying a yellow mark on the recorded file the user wants on the Recorded File Browser screen. - Supports user-marked recorded files protection function. - Supports various screensaver modes. - Various device protection functions. - Supports AirDrop file transfer. - Supports transferring multiple files using data cable and Finder on Mac or iTunes on PC. - Supports Worldwide address. - Supports easy call function. *** However, calls using speakers are currently not supported, and recording is stopped during calls. For FAQs, please refer to the URL below. https://bit.ly/ThemisFAQen Please drive safely with Themis Black Box. * In the sample images of the recorded video included in the app screenshot, part of the license plate has been blurred to protect privacy.

About

DashMap

This app transforms your iPhone into a dual-screen safety system, offering simultaneous 4K dash cam recording and GPS navigation. It provides seamless integration with CarPlay, allowing you to control recording and navigation from your car's display while keeping your phone focused on the road.

Highlights
  • Dual-screen CarPlay integration
  • Simultaneous 4K recording and navigation
  • GPX/TCX route import
  • On-device video storage
  • Professional telemetry overlays
  • Automatic footage management
Features
Read full description

DashMap is the iPhone dash cam built for Apple CarPlay. Navigate on your car display while your mounted iPhone records in up to 4K—and keeps every drive video on-device. One App. Zero Clutter. The CarPlay Advantage Experience the Dual-Screen Setup: Mount your iPhone high for a clear 4K view of the road while your car’s built-in display handles the navigation. Seamless Sync: Search destinations and start recording directly from your dashboard. Eyes on the Road: Get turn-by-turn directions on CarPlay while your phone acts as your dedicated safety lens. Built for Explorers & Bikers Don't just follow the highway—follow your path. Route Import: Seamlessly import GPX and TCX files from your favorite planning tools. Custom Navigation: Follow specific backroads or trails while recording every mile of the journey. Pro Telemetry: High-speed GPS, heading, and live speed data are overlaid directly on your video. Privacy & Performance First We believe your data belongs to you. On-Device Storage: Every drive video stays on your iPhone. No cloud video storage or Wi-Fi transfer is required. Instant Access: No fishing for Wi-Fi or clunky companion apps. Tap, watch, and share instantly. Configurable Storage: Choose a 5, 10, 20, 40, or 60 GB video limit. When the limit is reached, DashMap removes the oldest footage first while leaving the active recording untouched. Key Features: Simultaneous 4K Recording & Navigation: Record while you drive without losing your way. CarPlay Support: Access essential navigation and recording actions from CarPlay while your mounted iPhone records the road. Advanced Route Preview: Check for toll roads and traffic before you shift into gear. Professional Overlays: Live GPS, speed, and time data embedded in your footage for insurance or sharing. Dual Camera Support: Switch to the front-facing camera for cabin security. Adaptive Thermal Protection: If your iPhone gets warm, DashMap automatically lowers the recording frame rate and restores your selected rate after the device cools down. Pro Tips for Drivers: Mount it High: Use a magsafe windshield mount behind your rearview mirror for the best 4K perspective. Stay Powered: Keep your phone plugged in for long-distance trips or touring. Magnetic Mounts: Use a MagSafe-compatible mount for the fastest "mount and go" experience. Privacy Policy: https://dashmap.co/privacy Terms of Use: https://dashmap.co/tos

Screenshots

Themis Black Box4 screens
DashMap4 screens

Verdict

The call

The clearest difference is review sentiment: Themis Black Box at 61% against DashMap's 25%. Themis Black Box also leads on in-app purchases (none vs 4) and iOS requirement (16.0 vs 18.5). DashMap's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 5 weeks). On price, monetization model and device support 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. DashMap sells 4 in-app purchases, starting at $2.99 per 7 days. Themis Black Box asks for nothing beyond the download.

UpkeepUpdate frequency

Themis Black Box ships an update every 5 weeks, DashMap every 2 weeks. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 5 level
Themis Black Box versus DashMap: the parameters behind the verdict, then further details
ParameterThemis Black BoxDashMap
PriceFreeFree
Rating—4.6 (5 ratings) — better
Positive reviews60.7% of reviews — better25.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better18.5
Further details — not scored
Size8 MB111 MB
Age rating4+4+
DeveloperYeontack JeongRalf Cheung

Customer experience

Themis Black Box

Written reviews28 reviews
Positive60.7%
Neutral14.3%
Negative25.0%

DashMap

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

In-app purchases

None

Themis Black Box

No in-app purchases

4 purchases

DashMap

Subscriptions4
  • 1 Week Premium7 Days trial$2.997 Days
  • 1 Month Premium7 Days trial$4.991 Month
  • 6 Months Premium7 Days trial$29.996 Months
Show 1 more
  • 1 Year Premium7 Days trial$49.991 Year

Questions

Is Themis Black Box free?
Themis Black Box is free to download, with no in-app purchases.
Is DashMap free?
DashMap is free to download, with in-app purchases available.
Do Themis Black Box or DashMap have ads?
Themis Black Box shows ads; DashMap does not.
Which is updated more often, Themis Black Box or DashMap?
Themis Black Box ships an update every 5 weeks, and DashMap every 2 weeks. Most recently, Themis Black Box was updated on September 23, 2026 and DashMap on September 17, 2026.

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