Aroma Core vs Spark Plug Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aroma Core
Effortlessly customize and control your scenting experience with this app, designed exclusively for Aroma Core machines. Manage your environment's aroma with just a few taps.
- Customize scent experience
- Control scenting machines
- Effortless operation
- Intuitive interface
Read full descriptionHide full description
Elevate your environment with the Aroma Core app, designed exclusively for Aroma Core machines. Effortlessly customize and control your scenting experience with just a few taps
Spark Plug Reader
Read full descriptionHide full description
Plug Read turns a spark plug into a diagnosis, and now it torques the replacement in correctly too. MATCHED BY EYE, NOT BY PART NUMBER Eight appearances, drawn as they come out of an engine. Tap the match and you get what it means and what to check, in the order worth checking it. INSTALL TORQUE, BY THREAD AND SEAT Pick the thread size and seat type, the head material, and get the torque range in both ft-lb and Nm, plus the hand-tight-and-turn fallback for when you do not have a torque wrench. Cross a plug wrong and you either strip the threads or leave it loose enough to blow out under compression, and the difference between right and wrong can be as little as five foot-pounds. THE PLUG IS THE CHEAPEST WINDOW INTO AN ENGINE Five minutes with a plug spanner tells you more about mixture, timing and oil control than an hour of guessing. NO PART NUMBERS, NO DATABASE Nothing here goes out of date, because it works from the plug in your hand and the thread you are installing into rather than a list of engine models. WORKS OFFLINE No account, no signal. The torque table is a published general reference cross-checked across several independent sources, not a measured specification for any specific engine. Manufacturer torque specification always takes precedence.
Screenshots
Verdict
The clearest difference is in-app purchases: Aroma Core at none against Spark Plug Reader's 1. Aroma Core also leads on iOS requirement (12.0 vs 16.4). Spark Plug Reader's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads 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
Both are free to download. Spark Plug Reader sells 1 one-off in-app purchase. Aroma Core asks for nothing beyond the download.
Aroma Core ships an update every 3 weeks, Spark Plug Reader every 2 days. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.
| Parameter | Aroma Core | Spark Plug Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 59 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | 可汗 罗 | EVREN YUCEBAS |
In-app purchases
Aroma Core
No in-app purchases
Spark Plug Reader
- Full Version$4.99
Questions
Is Aroma Core free?
Is Spark Plug Reader free?
Do Aroma Core or Spark Plug Reader have ads?
Which is updated more often, Aroma Core or Spark Plug Reader?
Other comparisons















