Vernier Caliper Simulator 2 vs A320 CFDS Trainer Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Vernier Caliper Simulator 2
Practice reading a vernier caliper with this free and easy application. Slide your finger to grip objects, enter your measurement guess, and check your accuracy. This version includes leaderboards and a higher precision scale option.
- Vernier caliper simulation
- Interactive object gripping
- Answer checking
- Leaderboards
- 0.005 cm precision scale option
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Practice reading a vernier caliper using this free and easy app. Ever wanted to practice reading a vernier caliper but didn’t have a set? No worries, now you can practice on your iPhone using this free and easy app. Just slide your finger across to grip the red object and take your reading. Enter your guess and press “Check Answer” to see if you got it right. This new version of the app adds leaderboards and the option to use a 0.005 cm precision scale. Keep practicing and you’ll be able to read the vernier caliper like a pro!
A320 CFDS Trainer Lite
Master the A320 Centralized Fault Display System with this mobile maintenance training app. Practice fault reporting, navigate menus, and access reference pages from related systems. Designed by aviation experts for professionals, it offers offline functionality and an ad-free experience.
- Practice PFR creation
- Navigate CFDS menus
- Access Normal and Menu Modes
- View static reference pages
- Offline functionality
- Ad-free learning
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A320 CFDS Maintenance Trainer Lite Master the A320 Centralized Fault Display System directly from your mobile device with this specialized maintenance training app. Designed by aviation maintenance experts for maintenance professionals, this app delivers an authentic learning experience of core CFDS functions. Not intended for pilot training. KEY FEATURES: - Practice PFR (Post Flight Report) creation with and without faults - Navigate CFDS menus and submenus - Access both Normal and Menu Modes - View static reference pages from related systems (FMS, ATSU, AIDS) - Optimized performance for older hardware - 100% ad-free learning experience - Full offline functionality Developed by ERM SIMS, specialists in aviation maintenance training simulations, this Lite version provides essential A320 CFDS navigation training in a user-friendly interface. FMS and other system pages are static view-only references to help maintenance personnel explore system relationships. Check out our Full version offering expanded capabilities and enhanced features. Disclaimer: This application serves as a reference tool only and does not replace official maintenance manuals, which remain the primary information source. Variations may exist due to different A320 configuration options.
Screenshots
Verdict
The clearest difference is review sentiment: Vernier Caliper Simulator 2 at 50% against A320 CFDS Trainer Lite's 25%. Vernier Caliper Simulator 2 also leads on iOS requirement (10.2 vs 13.0). A320 CFDS Trainer Lite's advantage is update cadence (every 3 months vs every 10 months). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Vernier Caliper Simulator 2 ships an update every 10 months, A320 CFDS Trainer Lite every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Vernier Caliper Simulator 2 | A320 CFDS Trainer Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.2 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Jiun Wei Chia | ERM SIMS LLC |
Customer experience
Vernier Caliper Simulator 2
A320 CFDS Trainer Lite
In-app purchases
Vernier Caliper Simulator 2
No in-app purchases
A320 CFDS Trainer Lite
No in-app purchases
Questions
Is Vernier Caliper Simulator 2 free?
Is A320 CFDS Trainer Lite free?
Do Vernier Caliper Simulator 2 or A320 CFDS Trainer Lite have ads?
Which is updated more often, Vernier Caliper Simulator 2 or A320 CFDS Trainer Lite?
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