Comparison

Protein Log vs Ring Protein

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

Head to head
About

Protein Log

Easily track your daily protein intake to support muscle strength goals. Log food and protein amounts, view historical data, and analyze trends with weekly, monthly, and annual graphs. Set personalized daily targets and customize your week's start day.

Highlights
  • Log daily protein intake
  • Add favorite foods for quick entry
  • View historical intake data
  • Analyze weekly, monthly, and annual graphs
  • Set daily protein targets
  • Customize week start day
Features
Read full description

Why not record your daily dietary protein intake and aim to improve your muscle strength? This app is an app that allows you to easily record your protein intake. Enter the food name and protein amount on the home screen and tap it to record the protein intake for the day. If you tap the favorite icon, you will be able to enter the protein intake immediately from your favorite from the next time. The History screen shows the food name and protein amount for the date selected on the calendar. You can modify the data by double-tapping the data. If you forget to record the data, you can add the data by clicking the "Add" button. The Analysis screen displays weekly, monthly, and annual protein intake graphs. It also shows the average daily protein intake for that period. On the Settings screen, you can set your daily target protein intake and the first day of the week on your calendar. You can choose to start on Monday or Sunday. In the free version, you can create up to 10 favorites and check the history for one week. If you want to create unlimited favorites or see all your history, please consider purchasing the premium version in the app. ---------------------- Terms of Service and Privacy Policy: https://akikibai-labolatory.jimdofree.com/privacy-policy/

About

Ring Protein

Features
Read full description

Ring Protein(リングプロテイン)は、 毎日のタンパク質摂取量を「直感的に」「迷わず」管理するためのアプリです。 ■ リング表示で、今日の摂取量が一目でわかる その日に摂取したタンパク質量は、円形のリングで可視化されます。 数値を追わなくても、今どれくらい足りているのか、あとどれくらい必要なのかが感覚的に把握できます。 忙しい日でも、アプリを開いた瞬間に状況が分かる設計です。 ■ 入力は「項目」と「摂取量」だけ Ring Proteinは、余計な情報をできるだけ省いています。 記録に必要なのは 食品名(または食事名)とタンパク質量だけ。 カロリーや栄養素の細かい管理が苦手な方でも、ストレスなく続けられます。 ■ よく食べる食品はワンタップで追加 プロテイン、鶏むね肉、卵など、よく食べる食品はあらかじめ登録可能。 毎日の記録を最短1タップで完了できます。 ■ AIがタンパク質量を推定 食品名を入力するだけで、AIがタンパク質量を自動推定します。 「だいたいこのくらいかな?」という曖昧な食事でも、 記録のハードルを大きく下げることができます。 ※食品データベースに一致した場合は回数消費なしで利用できます。 ■ 目標設定もシンプルに 体重と運動レベルから、1日の目標タンパク質量を推定。 もちろん、自分で数値を調整することも可能です。 分析画面では、日・週単位での摂取状況を確認できます。 ■ 続けることを最優先に考えた設計 Ring Proteinは「完璧な管理」よりも「続けられること」を大切にしています。 ・入力が面倒でやめてしまった ・数字が多くて疲れてしまった そんな経験がある方にこそ使ってほしいアプリです。 こんな方におすすめ タンパク質を意識した生活を始めたい 難しい栄養管理は続かなかった プロテインや筋トレの記録をシンプルに残したい 数字よりも感覚的に把握したい Ring Proteinで、毎日のタンパク質管理をもっと直感的に。

Screenshots

Protein Log4 screens
Ring Protein4 screens

Verdict

The call

The clearest difference is ads: Ring Protein at none against Protein Log's shown. Ring Protein also leads on update cadence (every 9 days vs every 2 months). Protein Log's advantage is iOS requirement (15.6 vs 17.5). On price, 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

Both are free to download. Protein Log sells 1 one-off in-app purchase and Ring Protein sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Protein Log ships an update every 2 months, Ring Protein every 9 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Protein Log versus Ring Protein: the parameters behind the verdict, then further details
ParameterProtein LogRing Protein
PriceFreeFree
Rating4.7 (291 ratings) — better—
Positive reviews78.1% of reviews—
Number of ratings291 — better—
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.5
Further details — not scored
Size7 MB7 MB
Age rating4+4+
DeveloperKei SuefujiTAKUMA YANO

Bugs and requests

Protein Log

Reported bugs

4 issues
  • Cannot pre-plan protein intake (error message)
  • Favorite star is auto-checked on app open
  • Video viewing history not working
  • Cannot delete planned entries

Requested features

14 requests
  • Add a food library/database
  • Allow editing/deleting favorite entries
  • Enable sorting of favorite entries
  • Add color customization options
  • Integrate with Apple Health
Show 9 more
  • Add iCloud sync
  • Add Apple Watch complication/widget
  • Add iPhone widget
  • Add animation for protein gauge increase
  • Allow pre-planning protein intake without errors
  • Show time of data entry
  • Allow editing previous day's entries directly
  • Add export/backup functionality
  • Allow data entry based on wake/sleep times

Ring Protein

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Protein Log

One-time1
  • PREMIUM$4.99
1 purchases

Ring Protein

One-time1
  • Pro機能をアンロック$2.99

Questions

Is Protein Log free?
Protein Log is free to download, with in-app purchases available.
Is Ring Protein free?
Ring Protein is free to download, with in-app purchases available.
Do Protein Log or Ring Protein have ads?
Protein Log shows ads; Ring Protein does not.
Which is updated more often, Protein Log or Ring Protein?
Protein Log ships an update every 2 months, and Ring Protein every 9 days. Most recently, Protein Log was updated on October 27, 2026 and Ring Protein on October 25, 2026.

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