Comparison

Not Not vs Light Memory.

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

Head to head
About

Not Not

Engage your brain with a logic and orientation puzzle game. Swipe your character according to increasingly complex instructions to reach higher levels. Offers two addictive game modes for a satisfying challenge.

Highlights
  • Logic and orientation challenges
  • Swipe-based character control
  • Increasingly complex instructions
  • Classic game mode
  • Challenge game mode
  • Addictive gameplay
Features
Read full description

How much can your BRAIN handle? Not Not puzzle game is the ultimate brain-busting challenge based on logic and orientation. Follow the written instructions to swipe your character towards the correct direction (up, down, left or right) and victory. As you reach higher levels in the game, increasingly complex and varied instructions will require use of both your logic and dexterity for you to succeed. And sorry (not really) for any mental inconvenience this may cause :) Two game modes are available: - in the classic mode, discover a new concept on each level! - in the challenge mode, go as far as possible following more and more complex instructions! ***** "Amazing game!" "NotNot is a fun, challenging, and hilarious game. This will cheat your brain many times, so when you finally finish a level, it's super satisfying. It consists of short levels (sometimes) and its very addicting." _by HKapples_ ***** "This game is epic" "This game is epic. The graphics are great, the game is enjoyable and it a brilliant game. It is quite challenging but is still realy fun. You just got to have good reactions." ---------------- _by a notnot reviewer_ ***** "Creative new mind bending game!" "Give it a try, something different." ---------------- _by JTonzo_

About

Light Memory.

Guide a small light creature through mysterious lands, collecting keys and overcoming environmental challenges. This physics-based adventure game offers 80 levels of exploration and action with simple visuals.

Highlights
  • Physics-based gameplay
  • Action and exploration mix
  • Collect keys to reach destinations
  • 80 challenging levels
  • Simple visual design
  • Universal app support
Read full description

Help the little light monster on its amazing adventure of the legendary world. It's a journey through various mysterious lands, mountains, and cliffs to unravel their hidden secrets! Along the way, you'll walk and explore with several limited lights. Be aware of the sounds, flashing lights, trigger buttons, etc. Take care of the sparkles, outwit the fireballs and cannons – all while braving the ever-changing elements and passage of time upon the road. === Features === - Easy gameplay with a physics-based environment. - Experience an exciting mix of Action and Exploration in dark world. - Seek out and collect all of the keys and bring them to the destinations. - Easy to learn, difficult to master, test your skills with 80 levels. - Simple and evocative visual design. - Universal app for iPhone and iPad. Game Video: https://youtu.be/Atk4hGZ1fi4 Search on App Store with "108km" to get our other games. Produced by 108km Tech ltd. www.108km.com

Screenshots

Not Not4 screens
Light Memory.4 screens

Verdict

The call

The clearest difference is rating: Not Not at 4.7 against Light Memory.'s 3.0. Not Not also leads on ratings volume (1K vs 1). Light Memory.'s advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, in-app purchases, monetization model 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. Not Not sells 8 one-off in-app purchases and Light Memory. sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Not Not holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Not Not has 1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Not Not ships an update every 2 weeks, Light Memory. every 5 days. The most recent releases landed on October 18, 2026 and September 30, 2026 respectively.

Scorecard5 real differences · 5 level
Not Not versus Light Memory.: the parameters behind the verdict, then further details
ParameterNot NotLight Memory.
PriceFreeFree
Rating4.7 (1K ratings) — better3.0 (1 ratings)
Positive reviews78.4% of reviews—
Number of ratings1K — better1
Update frequencyEvery 2 weeksEvery 5 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.06.0 — better
Further details — not scored
Size75 MB99 MB
Age rating17+4+
DeveloperAlternative Shift108km Tech Ltd

Customer experience

Not Not

All ratings1,049 ratings
Positive93.3%
Neutral3.5%
Negative3.1%
Written reviews776 reviews
Positive78.4%
Neutral5.4%
Negative16.2%

Light Memory.

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

Bugs and requests

Not Not

Reported bugs

3 issues
  • Game freezes on startup
  • Purchased ad removal not working
  • Inconsistent swipe/input detection

Requested features

3 requests
  • More levels and game modes
  • Option to disable music/sound effects
  • Improved accessibility for color-blind players

Light Memory.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Not Not

One-time8
  • No Ads$0.99
  • Unlock World : The Liar$0.99
  • Emergency Kit$0.99
Show 5 more
  • First Aid Kit2 variants$0.99
  • Survival Kit2 variants$2.99
  • Complete Kit$4.99
  • Immortal Kit$9.99
  • Ultimate Kit$29.99
2 purchases

Light Memory.

One-time2
  • Remove ADs$0.99
  • Unlock All Levels$1.99

Questions

Is Not Not free?
Not Not is free to download, with in-app purchases available.
Is Light Memory. free?
Light Memory. is free to download, with in-app purchases available.
Which has better reviews, Not Not or Light Memory.?
Not Not is rated higher. Not Not averages 4.7 out of 5 from 1K ratings, while Light Memory. averages 3.0 from 1 ratings.
Do Not Not or Light Memory. have ads?
Not Not shows ads; Light Memory. does not.
Which is updated more often, Not Not or Light Memory.?
Not Not ships an update every 2 weeks, and Light Memory. every 5 days. Most recently, Not Not was updated on October 18, 2026 and Light Memory. on September 30, 2026.

Other comparisons