Smart vs Digital Simple Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart
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技術の概要 土壌の養分濃度に応じて発色する試験紙“みどりくん®”と色を読み取る機器“Pico”を組み合わせた土壌分析に利用するアプリです。 みどりくんⓇとは 東京農業大学によって開発された、簡易土壌診断試キットです。 土壌に精製水を加え、振とうした懸濁液に、試験紙を直接浸すと土壌養分の濃度に応じて呈色します。 Pico（簡易測色計）とは 親指サイズ（18×15×60mm / 16g）の測色計です。 実物から色を読み取り、iOS版のスマートフォン端末にインストールした専用のアプリにBluetooth 接続で情報を転送し、あらかじめ登録した色見本帳と照合することができます。
Digital Simple Clock
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Thank you for downloading Digital Simple Clock. View the current time on a clear digital clock with seconds. Tap the menu button to switch between the stopwatch and count-up timer screens. Rotate your iPhone to landscape mode to use it as an easy-to-read desk clock. Features: • Digital clock with seconds • Stopwatch and count-up timer • Landscape desk clock mode • Large, simple display ideal for studying, focusing, and working Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://clock.infruit-inc.com/
Screenshots
Verdict
The clearest difference is in-app purchases: Smart at none against Digital Simple Clock's 1. Smart also leads on ads (none vs shown) and iOS requirement (9.0 vs 16.0). Digital Simple Clock's advantage is update cadence (every 3 days vs every 3 weeks). 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. Digital Simple Clock sells 1 one-off in-app purchase. Smart asks for nothing beyond the download.
Smart ships an update every 3 weeks, Digital Simple Clock every 3 days. The most recent releases landed on September 14, 2026 and September 15, 2026 respectively.
| Parameter | Smart | Digital Simple Clock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 51 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Palette | Takahiro Hama |
In-app purchases
Smart
No in-app purchases
Digital Simple Clock
- アプリ内課金$1.99
Questions
Is Smart free?
Is Digital Simple Clock free?
Do Smart or Digital Simple Clock have ads?
Which is updated more often, Smart or Digital Simple Clock?
Other comparisons
