Comparison

One Plus Two = 3 vs Mystery Digger

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

Head to head
About

One Plus Two = 3

Engage your mind with a unique puzzle game that blends numbers and letters. Solve challenges by translating numerical values into descriptive phrases using a given set of letters. Earn power-ups as you progress through increasingly complex mathematical and linguistic riddles.

Highlights
  • Number to phrase translation
  • Mathematical operations integration
  • Use all provided letters
  • Result must match target number
  • Power-up rewards
  • Hidden gameplay hints
Features
Read full description

This is the new type of puzzle which involves spelling and math. You see a number. You have a set of letters, which describe this numbers. You start from such simple tasks as 1 = one to such phrases as 14 = three times four plus two There is a pure math fun in solving them. There are several types of hints, which can help you become an ultimate problem solver: - you should always use all the letters to fill in the blank spaces - the result of the phrase should be equal to the number atop of the screen - you'll know what math operations are involved in phrase building - after several successful answers you'll earn "open a random word" powerup - there is also one more hidden hint, which you'll notice after some time of playing. One Plus Two = 3 is a great way of spending time solving puzzles.

About

Mystery Digger

Explore underground mysteries in this idle clicker game. Upgrade your drilling machine to uncover hidden notes and intriguing items that reveal a captivating story. Enjoy straightforward controls and soothing gameplay for a relaxing adventure.

Highlights
  • Idle clicker gameplay
  • Underground exploration
  • Drilling machine upgrades
  • Uncover hidden notes
  • Collect intriguing items
  • Captivating story progression
  • Relaxing adventure
Features
Read full description

Mystery Digger is a clicker idle game in which you explore underground mysteries while upgrading your drilling machine. You uncover hidden notes and intriguing items that piece together a captivating story. With straightforward controls and soothing gameplay, each journey into the depths offers a fresh and relaxing adventure tailored to your curiosity.

Screenshots

One Plus Two = 34 screens
Mystery Digger4 screens

Verdict

The call

The clearest difference is rating: Mystery Digger at 4.5 against One Plus Two = 3's 3.0. Mystery Digger also leads on in-app purchases (none vs 2) and review sentiment (92% vs 60%). On price, ads 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. One Plus Two = 3 sells 2 one-off in-app purchases. Mystery Digger asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mystery Digger holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Mystery Digger has 30 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of One Plus Two = 3's written reviews are positive against 92% of Mystery Digger's.

UpkeepUpdate frequency

One Plus Two = 3 ships an update every 2 months, Mystery Digger every 5 weeks. The most recent releases landed on September 7, 2026 and September 20, 2026 respectively.

Scorecard7 real differences · 3 level
One Plus Two = 3 versus Mystery Digger: the parameters behind the verdict, then further details
ParameterOne Plus Two = 3Mystery Digger
PriceFreeFree
Rating3.0 (4 ratings)4.5 (30 ratings) — better
Positive reviews60.0% of reviews92.2% of reviews — better
Number of ratings430 — better
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size27 MB117 MB
Age rating4+12+
DeveloperAlexey IzvalovNikolai Perminov

Customer experience

One Plus Two = 3

All ratings4 ratings
Positive25.0%
Neutral50.0%
Negative25.0%
Written reviews5 reviews
Positive60.0%
Neutral40.0%
Negative0.0%

Mystery Digger

All ratings29 ratings
Positive89.7%
Neutral0.0%
Negative10.3%
Written reviews64 reviews
Positive92.2%
Neutral3.1%
Negative4.7%

In-app purchases

2 purchases

One Plus Two = 3

One-time2
  • 100 Hint Bulbs$0.99
  • 1000 Hint Bulbs$4.99
None

Mystery Digger

No in-app purchases

Questions

Is One Plus Two = 3 free?
One Plus Two = 3 is free to download, with in-app purchases available.
Is Mystery Digger free?
Mystery Digger is free to download, with no in-app purchases.
Which has better reviews, One Plus Two = 3 or Mystery Digger?
Mystery Digger is rated higher. One Plus Two = 3 averages 3.0 out of 5 from 4 ratings, while Mystery Digger averages 4.5 from 30 ratings.
Do One Plus Two = 3 or Mystery Digger have ads?
Both One Plus Two = 3 and Mystery Digger show ads.
Which is updated more often, One Plus Two = 3 or Mystery Digger?
One Plus Two = 3 ships an update every 2 months, and Mystery Digger every 5 weeks. Most recently, One Plus Two = 3 was updated on September 7, 2026 and Mystery Digger on September 20, 2026.

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