Comparison

Themis Black Box vs Rodi Dashcam

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

Rodi Dashcam

This app acts as a smart dashcam, recording your drives with essential details like license plates, speed, and location embedded directly onto the video. It automatically organizes recordings into trips and offers hands-free control for a safer driving experience.

Highlights
  • Real-time recording with on-screen overlay
  • Automatic license-plate recognition
  • GPS trip tracking with route maps
  • Navigation companion mini-map
  • Smart trip organization
  • Hands-free Bluetooth control
Features
Read full description

Rodi is a smart dashcam for your everyday drive. Mount your phone, hit record, and Rodi captures the road while burning the key details — license plate, speed, address and time — right onto the video. Every clip is automatically organized into trips, so your drives are easy to find later. WHAT RODI DOES • Real-time recording with on-screen overlay — speed, current address, time, and detected license plates baked into the footage. • Automatic license-plate recognition while you drive. • GPS trip tracking — every drive gets a route map and stats (distance, duration, average speed). • Navigation companion — a glanceable mini-map on the recording screen, so you can follow your nav app's guidance and keep the camera rolling at the same time. • Smart trips — clips are grouped into trips automatically by time and location. • Edit afterwards — fix a plate, address, or timing on any clip before you share. • Share with the overlay baked in, or export the original. • Import existing videos and add trip info to them. • Hands-free control — pair over Bluetooth and your car's steering-wheel media buttons start/stop recording and zoom, with an audio confirmation, so you never take a hand off the wheel. • English and Chinese, with localized addresses. PRIVACY FIRST Your videos stay on your device and in your own photo library — Rodi never uploads them. Location is used only to draw the overlay and map your trips; it never leaves your device. The only data Rodi collects is anonymous, app-usage analytics to improve the app — not linked to your identity and never used for tracking. Keep the shape of every road you take.

Screenshots

Themis Black Box4 screens
Rodi Dashcam4 screens

Verdict

The call

The clearest difference is review sentiment: Rodi Dashcam at 100% against Themis Black Box's 61%. Rodi Dashcam also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Themis Black Box ships an update every 5 weeks, Rodi Dashcam every 3 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Themis Black Box versus Rodi Dashcam: the parameters behind the verdict, then further details
ParameterThemis Black BoxRodi Dashcam
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews60.7% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size8 MB28 MB
Age rating4+4+
DeveloperYeontack JeongChaoyi Chen

Customer experience

Themis Black Box

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

Rodi Dashcam

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Themis Black Box

No in-app purchases

None

Rodi Dashcam

No in-app purchases

Questions

Is Themis Black Box free?
Themis Black Box is free to download, with no in-app purchases.
Is Rodi Dashcam free?
Rodi Dashcam is free to download, with no in-app purchases.
Do Themis Black Box or Rodi Dashcam have ads?
Themis Black Box shows ads; Rodi Dashcam does not.
Which is updated more often, Themis Black Box or Rodi Dashcam?
Themis Black Box ships an update every 5 weeks, and Rodi Dashcam every 3 weeks. Most recently, Themis Black Box was updated on November 11, 2026 and Rodi Dashcam on November 5, 2026.

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