Stopwatch vs Smart Solar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stopwatch
This utility app provides a straightforward stopwatch and timer functionality. It's designed for simplicity, featuring large buttons for easy operation in various settings like the kitchen, gym, or classroom. Get precise timekeeping with minimal effort.
- Simple two-button interface
- Quick startup
- Small file size
- Count up and down timer
- Easy reset function
Read full descriptionHide full description
Stopwatch is the ultimate easy-to-use stopwatch. Use it in the kitchen, gym, classroom or wherever you need time counted up or down. ◉ Simple to use with only two big buttons! ◉ Quick startup time. ◉ Small file size. ▶ How to use: 1. Press Start. 2. Press Stop when finished. 3. Press Reset to restart. Download this app today!
Smart Solar
Read full descriptionHide full description
太陽発電設備の設置シミュレーションを行う業務用アプリです。 設置する太陽光パネルの枚数や角度、設置する地点を入力して、その地点の日射量データ、太陽光パネル等の性能データをもとに、発電量のシミュレーションを行います。 設置する機器の見積りも作成可能です。
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Solar at none against Stopwatch's 1. Smart Solar also leads on ads (none vs shown) and update cadence (every 2 months vs every 8 months). On price 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. Stopwatch sells 1 one-off in-app purchase. Smart Solar asks for nothing beyond the download.
Stopwatch ships an update every 8 months, Smart Solar every 2 months. The most recent releases landed on August 30, 2026 and September 19, 2026 respectively.
| Parameter | Stopwatch | Smart Solar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (71 ratings) — better | — |
| Positive reviews | 40.0% of reviews | — |
| Number of ratings | 71 — better | — |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPad |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Netviking AB | Intelade Inc. |
In-app purchases
Stopwatch
- Ad Removal$0.99
Smart Solar
No in-app purchases
Questions
Is Stopwatch free?
Is Smart Solar free?
Do Stopwatch or Smart Solar have ads?
Which is updated more often, Stopwatch or Smart Solar?
Other comparisons
