Comparison

Backpack Merge vs Calm Control

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

Head to head
About

Backpack Merge

Merge magical equipment and strategically organize your backpack to defend a peaceful academy from a monster invasion. Become the legendary Archmage and discover diverse combat strategies through talented equipment combinations.

Highlights
  • Merge equipment
  • Organize backpack
  • Defend from monsters
  • Diverse strategies
  • Talented equipment combinations
Features
Read full description

The Peaceful Magic Academy is suddenly under monsters' invasion! Become the legendary Archmage, merge your equipment, and organize your backpack! Help the Magic Academy fend off the monsters' invasion! Game Features: -Merge equipment and organize your backpack! -Defend the Magic Academy from monster attacks! -Talented equipment combinations offer diverse strategies! Contact us: hecs@droidhang.com

About

Calm Control

Features
Read full description

Guide. Clear. Breathe. Calm Control is a relaxing air traffic puzzle game with a clever twist in every level, plus Storm Watch, a tower defence mode set over the same peaceful islands. HOW IT PLAYS • Tap a plane, then tap a runway, or just drag it there. Planes glide in along smooth, automatically planned approaches • One plane per runway: time your landings or they must go around • Watch the fuel ring around every plane and land the lowest first • Clear departures between arrivals, and land back to back to build combos • Tap the Calm meter to slow the whole sky when things get busy 60 LEVELS, EVERY ONE A LITTLE DIFFERENT • A new idea almost every level: short runways, helicopters, seaplanes, MAYDAY emergencies, storms, restricted airspace, wind, bird flocks and hot-air balloons • Twist levels change the rules: Rush Hour, Night Fog, Fuel Crisis, VIP Day, Storm Front, Jet Set, Departure Rush, Mayday Day and Quiet Skies • Two goals on every level. Meet them to earn all three stars STORM WATCH: TOWER DEFENCE IN THE SKY • Clouds, bird flocks, balloons, drones, storm cells and fog banks ride the wind toward your control tower • Build five airport facilities: Gust Fan, Cloud Seeder, Radar Dome, Falcon Roost and Lighthouse • Upgrade each one to level 3, then choose one of two specialisations • Endless waves, a supercell boss every tenth wave, and a boost card to choose every fifth • Several island maps, each with its own wind currents MORE WAYS TO PLAY • Endless mode with upgrade cards between waves • A fresh Daily Challenge every day • Leaderboards and achievements with Game Center MADE TO RELAX • Soft dusk skies, gentle original music and satisfying touchdowns • Short sessions, no timers pushing you unless the level says so • Plays offline, with no account needed FREE TO PLAY • The whole campaign, Endless, Daily Challenge and Storm Watch are free • Occasional ads appear only between plays, never during one • Optional videos give a second chance, a supply drop or a card reroll • Remove Ads (one-time purchase) ends the ads between plays and makes second chances free • Storm Watch Pass (one-time purchase) adds two exclusive maps, the Lighthouse from the first wave, and supply drops and rerolls without videos Support: https://nirah.co/legal/support Privacy policy: https://nirah.co/legal/privacy © 2026 Nirah Digital

Screenshots

Backpack Merge4 screens
Calm Control4 screens

Verdict

The call

The clearest difference is ads: Backpack Merge at none against Calm Control's shown. Backpack Merge also leads on iOS requirement (12.0 vs 15.0). Calm Control's advantage is update cadence (weekly vs every 6 weeks). 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. Backpack Merge sells 10 one-off in-app purchases and Calm Control sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Backpack Merge ships an update every 6 weeks, Calm Control weekly. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Backpack Merge versus Calm Control: the parameters behind the verdict, then further details
ParameterBackpack MergeCalm Control
PriceFreeFree
Rating4.4 (119 ratings) — better—
Positive reviews25.4% of reviews—
Number of ratings119 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size231 MB34 MB
Age rating9+4+
Developer伟 王Nirah Digital

Bugs and requests

Backpack Merge

Reported bugs

11 issues
  • Ads fail to load or display (critical issue affecting rewards)
  • Server connection errors and timeouts
  • Insufficient items equipped error blocking stage progression
  • Stamina randomly drains after server errors
  • Login failures with Facebook and Apple ID
Show 6 more
  • Invisible mob enemies causing infinite waves
  • Game crashes and freezes
  • Ads stuck in loading state indefinitely
  • Rewards not properly granted after watching ads on tablets
  • Performance lag during boss fights
  • Game won't open or load properly

Requested features

7 requests
  • Add German language support
  • Add Ukrainian and Russian language options
  • Add Google ID login option for iOS
  • Reduce ad frequency and duration
  • Implement alternative monetization model
Show 2 more
  • Fix ad loading system
  • Improve server stability

Calm Control

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Backpack Merge

One-time10
  • Some Gems$0.99
  • Package33$0.99
  • Package9$0.99
Show 7 more
  • Package7$4.99
  • Package28$4.99
  • Package81$7.99
  • Package90$9.99
  • Package8$9.99
  • Package10$9.99
  • Package44$19.99
2 purchases

Calm Control

One-time2
  • Remove Ads$2.99
  • Storm Watch Pass$2.99

Questions

Is Backpack Merge free?
Backpack Merge is free to download, with in-app purchases available.
Is Calm Control free?
Calm Control is free to download, with in-app purchases available.
Do Backpack Merge or Calm Control have ads?
Calm Control shows ads; Backpack Merge does not.
Which is updated more often, Backpack Merge or Calm Control?
Backpack Merge ships an update every 6 weeks, and Calm Control weekly. Most recently, Backpack Merge was updated on November 8, 2026 and Calm Control on October 31, 2026.

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