Comparison

左(右) vs Up&Down Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

左(右)

Read full description

左右の判断がすぐに出来ない方の為のアプリです。 このアプリがあれば、左と言われた時に視覚的にどちらが左か即座に判断出来ます。 これで右と左に悩まされていた日々とはおさらばです! 表示される文字は、Apple watchを装着している手首の位置と紐づいていますので、設定>一般>向き>手首の位置を変更することで表示される文字を変更出来ます。

About

Up&Down Timer

Features
Read full description

Up&Down Timer counts down to zero or up from zero — one simple timer for cooking, study, workouts and focus. Set any duration in seconds with a fast numeric keypad, like a calculator. Tap start, and a Live Activity shows the time right on your Lock Screen and Dynamic Island — no need to open the app. When time is up, you get sound, vibration and a notification you won't miss. WHY YOU'LL LOVE IT • Countdown and count-up in one app • Fast keypad entry for hours, minutes and seconds • Live Activity on Lock Screen and Dynamic Island • Clear finish alert: sound, vibration, notification • Pause and resume with accurate time • Precise in the background and while locked • iPhone and iPad, 34 languages PERFECT FOR • Cooking and baking • Study, focus and Pomodoro sessions • Workouts and interval training • Work time-boxing • Meditation and rest • Talks and presentations • Brewing coffee and tea • Winding down before bed Simple, beautiful, distraction-free. Set your first timer in seconds.

Screenshots

Up&Down Timer4 screens

Verdict

The call

The clearest difference is price: 左(右) at Free against Up&Down Timer's $1.99. 左(右) also leads on update cadence (every 2 days vs every 4 months) and iOS requirement (10.0 vs 14.0). On ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

左(右) is free to download; Up&Down Timer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

左(右) ships an update every 2 days, Up&Down Timer every 4 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 3 level
左(右) versus Up&Down Timer: the parameters behind the verdict, then further details
Parameter左(右)Up&Down Timer
PriceFree — better$1.99
Update frequencyEvery 2 days — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS10.0 — better14.0
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperOsamu HiraokaNetflowers Inc.

In-app purchases

None

左(右)

No in-app purchases

None

Up&Down Timer

No in-app purchases

Questions

Is 左(右) free?
左(右) is free to download, with no in-app purchases.
Is Up&Down Timer free?
Up&Down Timer costs $1.99, with no in-app purchases.
Do 左(右) or Up&Down Timer have ads?
Neither 左(右) nor Up&Down Timer shows ads.
Which is updated more often, 左(右) or Up&Down Timer?
左(右) ships an update every 2 days, and Up&Down Timer every 4 months. Most recently, 左(右) was updated on October 1, 2026 and Up&Down Timer on October 9, 2026.

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