Comparison

Sleep IGO vs Smilingual

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

Head to head
About

Sleep IGO

Features
Read full description

Sleep IGO – Fall Asleep with Go Sleep IGO is an app that automatically replays classic Go game records. The gentle, steady rhythm of each move helps calm your mind and guides you into restful sleep. A perfect companion at the end of your day. Key Features - Automatic replay of Go game records - Around 50 classic games, mainly featuring Honinbo Shusaku from the Edo period - Includes AlphaGo game records - Visual evaluation graph showing the flow of the game - Simple and calming user interface

About

Smilingual

This application translates spoken words into over 130 languages. Simply select your language, speak into the app, and receive instant translations. It's designed for easy communication during travel, hospitality, and everyday interactions.

Highlights
  • Real-time voice translation
  • Supports over 130 languages
  • Easy to use interface
  • Share favorite phrases
  • URL scheme integration
Features
Read full description

Smilingual is translation application which everyone can use easily. "Smile + Lingual = Smilingual" After you select your language, just you tap and speak to this application. You can share your favorite phrases. Smilingual has over 130 languages now! We recommend "Smilingual" for your hospitality, travel, communication and so on. Use it now! [URL scheme example] smilingual://?left=ja-JP&right=en-US

Screenshots

Smilingual2 screens

Verdict

The call

The clearest difference is in-app purchases: Smilingual at none against Sleep IGO's 1. Smilingual also leads on ads (none vs shown) and device support (4 vs 1). On price and update cadence 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. Sleep IGO sells 1 one-off in-app purchase. Smilingual asks for nothing beyond the download.

UpkeepUpdate frequency

Sleep IGO ships an update every 4 months, Smilingual every 2 months. The most recent releases landed on October 26, 2026 and November 2, 2026 respectively.

Scorecard4 real differences · 4 level
Sleep IGO versus Smilingual: the parameters behind the verdict, then further details
ParameterSleep IGOSmilingual
PriceFreeFree
Positive reviews—78.6% of reviews
Update frequencyEvery 4 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS1612.0 — better
Further details — not scored
Size7 MB17 MB
Age rating4+4+
DeveloperYuji FujishiroShamrock Records, Inc.

In-app purchases

1 purchases

Sleep IGO

One-time1
  • play point 50$0.99
None

Smilingual

No in-app purchases

Questions

Is Sleep IGO free?
Sleep IGO is free to download, with in-app purchases available.
Is Smilingual free?
Smilingual is free to download, with no in-app purchases.
Do Sleep IGO or Smilingual have ads?
Sleep IGO shows ads; Smilingual does not.
Which is updated more often, Sleep IGO or Smilingual?
Sleep IGO ships an update every 4 months, and Smilingual every 2 months. Most recently, Sleep IGO was updated on October 26, 2026 and Smilingual on November 2, 2026.

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