# DENSO Spark Plugs vs Tool Clock

The clearest difference is rating: DENSO Spark Plugs at 4.8 against Tool Clock's 4.0. DENSO Spark Plugs also leads on in-app purchases (none vs 1) and ratings volume (20 vs 1). Tool Clock's advantage is update cadence (monthly vs every 15 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Tool Clock sells 1 one-off in-app purchase. DENSO Spark Plugs asks for nothing beyond the download.

DENSO Spark Plugs holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: DENSO Spark Plugs has 20 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

DENSO Spark Plugs ships an update every 15 months, Tool Clock monthly. The most recent releases landed on September 4, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | DENSO Spark Plugs | Tool Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (20 ratings)](https://appshunter.io/ios/app/denso-spark-plugs/id1499244061/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/tool-clock/id6449158660/reviews) |
| Number of ratings | **20** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 7 MB |
| Requires iOS | **14** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nikaan Nikzad](https://appshunter.io/developer/1465623388) | [Nghia Huynh Quang](https://appshunter.io/developer/1514165485) |

## What reviewers say

### DENSO Spark Plugs

[App page](https://appshunter.io/ios/app/denso-spark-plugs/id1499244061)

Find the correct DENSO spark plug for your car by selecting your vehicle model. This app serves as a reference for car owners, mechanics, and sellers to identify suitable spark plug part numbers and their compatibility with various car brands.

**Highlights:** Identify suitable spark plug part numbers, Search by car model, Reference for mechanics, Reference for sellers, Supports numerous car brands

**Features:** macOS Compatibility

**In-app purchases:** none


### Tool Clock

[App page](https://appshunter.io/ios/app/tool-clock/id6449158660)

This utility app offers comprehensive time management tools, including world clocks with time zones and maps, customizable alarms, and versatile timers for workouts and sports. It simplifies time input with a one-tap selection mechanism.

**Highlights:** World clock with time zones and maps, Customizable alarms with fast time input, Stopwatch with lap counting and workout timers, Sports game timers (football, basketball, etc.), Multiple parallel timers, Screen always on display

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro features | $0.99 | one-time |


## Frequently asked questions

### Is DENSO Spark Plugs free?

DENSO Spark Plugs is free to download, with no in-app purchases.

### Is Tool Clock free?

Tool Clock is free to download, with in-app purchases available.

### Which has better reviews, DENSO Spark Plugs or Tool Clock?

DENSO Spark Plugs is rated higher. DENSO Spark Plugs averages 4.8 out of 5 from 20 ratings, while Tool Clock averages 4.0 from 1 ratings.

### Do DENSO Spark Plugs or Tool Clock have ads?

Neither DENSO Spark Plugs nor Tool Clock shows ads.

### Which is updated more often, DENSO Spark Plugs or Tool Clock?

DENSO Spark Plugs ships an update every 15 months, and Tool Clock monthly. Most recently, DENSO Spark Plugs was updated on September 4, 2026 and Tool Clock on September 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*