Comparison

RockSpin vs RadTeamSim.Meter

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

Head to head
About

RockSpin

Features
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RockSpin brings the polarizing microscope to your fingertips. Designed for geology students, researchers, and educators, this app lets you explore petrographic thin sections with full 360-degree rotation. Compare PPL and XPL views, inspect mineral markers, explore 3D crystal structures, browse a curated rock image catalog, and save favorites across your account. Every thin section is available at 300px at no charge. Pro ($4.99/month or $49.99/year) unlocks 500px and 700px viewing. Subscriptions auto-renew and can be cancelled in Apple ID settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rockspin.app/privacy

About

RadTeamSim.Meter

Features
Read full description

RadTeamSim.Meter turns your phone into a simulated radiation survey instrument for emergency response training. Load a scenario, move through the real world, and receive GPS-driven radiation readings โ€” no kiosk, computer, or special equipment required. FOUR SIMULATED INSTRUMENTS Switch between a personal radiation detector (dosimeter), gamma survey meter (open/closed window), beta survey meter, and alpha survey meter during any mission. Each instrument displays real-time readings as your position changes within the loaded scenario. REAL-WORLD TRAINING Your phone's GPS drives the simulation. Walk or drive through your actual jurisdiction while practicing field survey procedures, instrument switching, and data recording โ€” the same workflow you would follow in a real radiological response. IMMEDIATE MISSION FEEDBACK Every mission ends with a detailed report: total dose received, highest dose rate encountered, a CDC Health Impact assessment placing your exposure into a hazard category with plain-language health effect descriptions, and a dose comparison to familiar reference exposures like common medical procedures. Your route choices and time in the field translate directly to simulated health outcomes. SAVE FIELD DATA Record surveys and observations with GPS coordinates during your mission. Authenticate into Mission Edge or CBRNResponder to transmit field data directly โ€” your simulated team appears identically to a physical-world responder. STANDALONE OR INTEGRATED Use Meter independently with its own subscription, or as part of a full RadTeamSim.Route and RadTeamSim.Flight SaaS subscription at no additional cost. RadTeamSim.Meter includes a Guest mode to explore all features of the app and experience a preloaded scenario without an account. For functionality with custom scenarios, a RadTeamSim account at radteamsim.com is required.

Screenshots

RockSpin4 screens
RadTeamSim.Meter4 screens

Verdict

The call

The clearest difference is in-app purchases: RadTeamSim.Meter at none against RockSpin's 3. RadTeamSim.Meter also leads on iOS requirement (13.0 vs 16.0). RockSpin's advantage is update cadence (every 2 days vs monthly). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. RockSpin sells 3 in-app purchases, starting at $9.99 per month. RadTeamSim.Meter asks for nothing beyond the download.

UpkeepUpdate frequency

RockSpin ships an update every 2 days, RadTeamSim.Meter monthly. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.

Scorecard3 real differences ยท 3 level
RockSpin versus RadTeamSim.Meter: the parameters behind the verdict, then further details
ParameterRockSpinRadTeamSim.Meter
PriceFreeFree
Update frequencyEvery 2 days โ€” betterMonthly
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPod โ€” better
Requires iOS16.013.0 โ€” better
Further details โ€” not scored
Size81 MB107 MB
Age rating4+12+
DeveloperWOOHYUN JEONRadiation Emergency Services LLC

In-app purchases

3 purchases

RockSpin

Subscriptions2
  • Pro Monthly$9.991 Month
  • Pro Yearly$99.991 Year
One-time1
  • 1,000 Credits$14.99
None

RadTeamSim.Meter

No in-app purchases

Questions

Is RockSpin free?
RockSpin is free to download, with in-app purchases available.
Is RadTeamSim.Meter free?
RadTeamSim.Meter is free to download, with no in-app purchases.
Do RockSpin or RadTeamSim.Meter have ads?
Neither RockSpin nor RadTeamSim.Meter shows ads.
Which is updated more often, RockSpin or RadTeamSim.Meter?
RockSpin ships an update every 2 days, and RadTeamSim.Meter monthly. Most recently, RockSpin was updated on October 4, 2026 and RadTeamSim.Meter on October 19, 2026.

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