Comparison

Simple Protein Log vs Smile Detection

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

Head to head
About

Simple Protein Log

Features
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An app that allows you to record your daily protein intake. Do you want to build muscle but are not sure if you are getting enough protein every day? Why not use the app to track your protein intake and keep track of whether you are getting enough? With this app, you can easily manage your daily protein intake by simply entering "Food Name," “Intake,” and “Intake time" and tapping the "Add" button. In the Chart screen, you can check the weekly, monthly, and yearly protein intake. This is useful for reviewing your daily intake. If you forget to keep a record of your protein intake, you can also add past records from the Calendar screen. ●Features ・Easy to use, just register “Food name", “Intake”, and “Intake time”. ・If you register your most frequently consumed foods as favorites, it will be easier to add them next time. ・The chart allows you to see your weekly, monthly, and yearly protein intake at a glance. ・The calendar allows you to quickly see how much protein you are consuming each day. ・No need to log in. ●Disclaimer This App is not medical or treatment advice. It is neither professional diagnosis, opinion or service – and may not be treated as such by the user. We strongly recommend that you consult your own physician or another available health professional regarding any diagnosis, findings or interpretation. ● Privacy Policy https://apps.seeds-digital.com/privacy-policy/ ● Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Smile Detection

Features
Read full description

Facial expressions are analyzed in real time to determine whether or not a person is smiling.

Screenshots

Simple Protein Log4 screens
Smile Detection1 screens

Verdict

The call

The clearest difference is in-app purchases: Smile Detection at none against Simple Protein Log's 3. Simple Protein Log's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.7.2). On price, update cadence and ads 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. Simple Protein Log sells 3 in-app purchases, starting at $0.99 per month. Smile Detection asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

Scorecard3 real differences · 3 level
Simple Protein Log versus Smile Detection: the parameters behind the verdict, then further details
ParameterSimple Protein LogSmile Detection
PriceFreeFree
Update frequencyEvery 2 weeksEvery 2 weeks
AdsYesYes
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.7.2
Further details — not scored
Size52 MB35 MB
Age rating17+4+
DeveloperNAOYA ONOHideaki Uchikoshi

In-app purchases

3 purchases

Simple Protein Log

Subscriptions1
  • Premium Plan$0.991 Month
One-time2
  • Support Developer$0.99
  • Remove ads$9.99
None

Smile Detection

No in-app purchases

Questions

Is Simple Protein Log free?
Simple Protein Log is free to download, with in-app purchases available.
Is Smile Detection free?
Smile Detection is free to download, with no in-app purchases.
Do Simple Protein Log or Smile Detection have ads?
Both Simple Protein Log and Smile Detection show ads.
Which is updated more often, Simple Protein Log or Smile Detection?
Simple Protein Log ships an update every 2 weeks, and Smile Detection every 2 weeks. Most recently, Simple Protein Log was updated on October 14, 2026 and Smile Detection on October 3, 2026.

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