Appworthy

Tuning Simulator

ECU tuning on a virtual dyno

Scott Busby
Download on theApp Store
App Store rating4.8★8 ratings
PriceFreeIn-app $14.99
Age4+Store age rating
Size74 MBiPhone download
CategoryGames
DeveloperScott Busby

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • Free to download · in-app purchases $14.99 (1 listed). The store doesn’t say how often these bill.
  • If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.

Not yet tested.

The store currently lists version 1.1.0, updated 2026-10-30.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

A simulated engine on a dyno, run by a standalone ECU you tune yourself. Change the fuel map, the timing or the boost and watch what happens to the power curve, the mixture and the knock sensor.

It behaves like the real thing. The engine model runs every combustion event. Lean it out and it misfires. Add too much timing and it knocks, then cracks a piston. Fit bigger injectors without telling the ECU and it floods.

THE ECU

- Fuel VE, lambda targets, ignition, boost target and wastegate duty, idle, warmup, cranking, accel enrichment and dead times

- Closed loop, knock control, rev and boost limiters, auto learn and "Fix from pull"

- Select cells, drag curves, type values, interpolate and smooth, in a grid or in 3D

- Lay the data log over any table and see which cells ran lean or knocked…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

3 measured · 5 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Not assessed
Fewer than 50 reviews scanned — too few to state a rate
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 1.1.0 · 2026-10-30
- Daily challenge: one broken engine a day, the same for every player, with a leaderboard. Tuesdays and Saturdays are free on the Turbo Four. - Career: four rival shops with an 8-week season at Dyno Day. - Cars you tuned come back weeks later, on warranty if the tune was too close to the edge, or as regulars if it held up. - Intermittent faults that only show hot, cold, under boost or near redline, and a new "Three shops tried" job. - 8 new achievements. - Fixes for career saves, Game Center scores over 500 hp/L, and road tests started from the job card.
Version 1.0.2 · 2026-10-16
New - Reminders: get a nudge when customers are waiting at your shop or a lesson is left to do. At most one a day, never at night. Turn them on or off in Setup. - Sharper engine parts on iPhone and iPad. - After a dyno pull, the dyno goes back to the mode, rpm and throttle you had set, instead of holding at 2500 rpm. - A short note after each update shows what changed.

Assessment record

Status
Not yet tested
App identifier
tuning-simulator
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
4.75 ★ · 8 ratings
Version
1.1.0
Updated
30 Oct 2026
Price
Free · In-app purchases
Age rating
4+
Size
74 MB
Open in App Store
Developer
Scott Busby
Category
Games
Listing price
Free · In-app purchases

Purchases the store lists

 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

Show 1 more purchase we couldn’t categorise

These are really on sale; we just can’t tell from the name whether they recur.

Tuning Simulator ProTerm not stated$14.99

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Review thresholds Read the methodology For developers

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