Comparison

Nemunmo vs Islo

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

Head to head
About

Nemunmo

Features
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Make sleep something to look forward to. Nemunmo is a sleep-tracking and raising app where you review your daily sleep while caring for your partner, Nemunmo. Sleep data recorded in the Health app becomes EXP for your Nemunmo. The better you sleep, the more your Nemunmo grows, and your sleep patterns can lead it to evolve into a new form. Add a little more joy to bedtime, even on your busiest days. Build healthier sleep habits together with a Nemunmo of your own. KEY FEATURES • View sleep duration and sleep stages in easy-to-read charts • Review your daily sleep score and trends • Earn EXP based on how long you sleep • Raise and evolve your Nemunmo • Check sleep and growth from the Apple Watch app • View your sleep score and level with watch-face widgets • Photograph and share your favorite Nemunmo • Enjoy login bonuses and raising items Apple Watch is required to use this app. This app is not a medical device and is not intended to diagnose, treat, or prevent any medical condition.

About

Islo

Features
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Tap an egg, meet a tiny baby and raise it right on your iPhone: in the Dynamic Island, on the Lock Screen, in StandBy and in widgets. Feed it, bathe it, play with it and watch it grow up. It never dies and never makes you feel guilty. HATCH IT AND WATCH IT GROW • Tap the egg until the shell cracks and your baby pops out • It grows from baby to child, teen and adult, celebrating each stage • As an adult it shows a personality shaped by your care: playful, cuddly, foodie or sparkly EVERYDAY CARE • Drag food right to its mouth and watch it munch with puffy cheeks • Clean up little poops with one tap • Rub it with bubbly foam at bath time • Pet it, tickle it, boop its nose • Tuck it in and turn the lights off for a starry night PLAY TOGETHER • Playroom mini-games: Which Way?, Catch the Snacks, Pop the Bubbles • Teach tricks with praise: a big jump, spin, bow and dance • It dances along when you play your music COINS, SHOP AND ALBUM • Earn coins with daily tasks and open a gift box every day • Buy treats, toys and decor for the room • A memory album keeps the hatching, every stage and each learned trick IT LIVES ON YOUR IPHONE • Sleeps on your schedule and wakes up with you • Celebrates your step goal and hides from the rain • Curls up on the charger and puts on a tie before a meeting • Feed, pet and play from the widget or the Live Activity without opening the app NO GUILT, EVER Your creature never dies and never runs away. A basic daily ration always refills, so it never goes hungry. On a frosty day it may catch a cold, which is just a sneeze and a cup of tea. Gentle reminders are cheerful, and skipping one changes nothing. PICK YOUR FRIEND Puff is a warm fluffy ball, Drop is a calm little slime philosopher, Chirp is a quick curious spark of a bird. Dress them in hats, scarves and new outfit packs, and preview every item on the Dynamic Island, the Lock Screen and widgets. VISITS Send your creature to a friend for an hour. They see it in their own Live Activity after they accept the visit. PRIVATE BY DESIGN • No sign-up • Steps stay on your device • Only the start times of calendar events are read, never titles or guests • Every data source is off until you turn it on, and Islo is complete without any of them • No ads ISLO PRO Pro grows your family: a second creature and new generations hatched from eggs, up to four together. It adds real-time weather and calendar reactions from our server, a livelier Live Activity, flip and roll tricks, a double daily gift, your own photos in the album and exclusive items. Item packs are one-time purchases. Coins and food baskets are optional purchases. Pro is an auto-renewing subscription, monthly or yearly. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings. Terms of Use: https://isloapp.web.app/terms Privacy Policy: https://isloapp.web.app/privacy

Screenshots

Nemunmo4 screens
Islo4 screens

Verdict

The call

The clearest difference is in-app purchases: Nemunmo at none against Islo's 10. Nemunmo also leads on update cadence (every 2 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Islo sells 10 one-off in-app purchases. Nemunmo asks for nothing beyond the download.

UpkeepUpdate frequency

Nemunmo ships an update every 2 days, Islo every 3 weeks. Both last shipped on October 29, 2026.

Scorecard2 real differences Ā· 4 level
Nemunmo versus Islo: the parameters behind the verdict, then further details
ParameterNemunmoIslo
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, Apple Watch — betteriPhone
Requires iOS18.517.2 — better
Further details — not scored
Size123 MB8 MB
Age rating4+4+
DeveloperFumiya ShigeharaYevhenii Bruchkovskyi

In-app purchases

None

Nemunmo

No in-app purchases

10 purchases

Islo

One-time10
  • A handful of coins$0.99
  • Animal pack$1.99
  • Party pack$1.99
Show 7 more
  • Sweet basket$1.99
  • Spooky pack$2.99
  • Story Heroes pack$2.99
  • Tokyo & Seoul pack$2.99
  • A pouch of coins$2.99
  • Feast basket$3.99
  • A chest of coins$5.99

Questions

Is Nemunmo free?
Nemunmo is free to download, with no in-app purchases.
Is Islo free?
Islo is free to download, with in-app purchases available.
Do Nemunmo or Islo have ads?
Neither Nemunmo nor Islo shows ads.
Which is updated more often, Nemunmo or Islo?
Nemunmo ships an update every 2 days, and Islo every 3 weeks. Most recently, Nemunmo was updated on October 29, 2026 and Islo on October 29, 2026.

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