Comparison

One Plus Two = 3 vs Diamond District

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

Diamond District

Engage in a dynamic financial simulation within a fully realized operating system. Mine precious gems, craft luxury jewelry, and trade on a player-driven marketplace. Build your empire and reputation in a persistent, real-time economy.

Highlights
  • Mine diamonds, emeralds, and sapphires
  • Process raw stones into revealed gems
  • Design luxury jewelry with synergy scoring
  • Trade stocks and collect dividends
  • Player-powered marketplace for gems and jewelry
  • Build reputation and climb leaderboards
  • Run a lending operation
  • Publish news articles
Read full description

New phone. New York. Real players. Diamond District: Trade Tycoon runs inside GemOS - a fully simulated operating system set in New York's diamond district. Launch apps. Check widgets. Customize your homescreen. Every app inside GemOS is its own world, with its own economy and real players behind it. The market runs 24/7. It doesn't wait for you. ■ MINE THE SOURCE - Own operations across three regions. Hire workers, manage contracts, pull diamonds, emeralds, and sapphires out of the ground. ■ HUNT RARE GEMS - Process raw stones into revealed gems. Color, clarity, cut, origin, treatment, carat weight. The rarest combinations carry odds beyond 1 in a trillion. Most will never surface in the lifetime of the universe. ■ DESIGN LUXURY JEWELRY - Freeform crafting with real synergy scoring. Your best work gets featured in Gloss Magazine. ■ TRADE ON WINSTON RESERVE - Stocks tied to real in-game activity. Short before earnings. Collect dividends funded by actual player fees. ■ TRADE ON DBAY - The player-powered marketplace. Buy and sell gems, jewelry, and papers with real users in real time. ■ CLIMB THE HALL OF TAPE - Every trade is public. The best ones get immortalized. Your name on the board means something. ■ RUN YOUR OWN LENDING OPERATION - Set your own terms through LoanShark. ■ BUILD REPUTATION - Every trade, contract, and article published adds to a score that controls your access. ■ WRITE THE NEWS - Earn a press pass. Publish on DD News. Shareholders vote on what runs. ■ MAKE IT YOURS - Customize your GemOS homescreen with widgets, icon packs, and layouts. Premium themes available via in-app purchase. ■ COMPOUND YOUR EDGE - Mining feeds crafting. Crafting feeds the marketplace. Fees fund dividends. The players who last build loops, not just trades. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

One Plus Two = 34 screens
Diamond District4 screens

Verdict

The call

The clearest difference is rating: Diamond District at 4.8 against One Plus Two = 3's 3.0. Diamond District also leads on ads (none vs shown) and review sentiment (91% vs 60%). One Plus Two = 3's advantage is iOS requirement (15.0 vs 17.5). 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. One Plus Two = 3 sells 2 one-off in-app purchases and Diamond District sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Diamond District holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Diamond District has 356 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 91% of Diamond District's.

UpkeepUpdate frequency

One Plus Two = 3 ships an update every 2 months, Diamond District weekly. The most recent releases landed on October 8, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
One Plus Two = 3 versus Diamond District: the parameters behind the verdict, then further details
ParameterOne Plus Two = 3Diamond District
PriceFreeFree
Rating3.0 (4 ratings)4.8 (356 ratings) — better
Positive reviews60.0% of reviews91.4% of reviews — better
Number of ratings4356 — better
Update frequencyEvery 2 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, Mac
Requires iOS15.0 — better17.5
Further details — not scored
Size27 MB134 MB
Age rating4+12+
DeveloperAlexey IzvalovDerek Kaplan

Customer experience

One Plus Two = 3

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

Diamond District

All ratings355 ratings
Positive95.8%
Neutral0.8%
Negative3.4%
Written reviews174 reviews
Positive91.4%
Neutral2.9%
Negative5.7%

Bugs and requests

One Plus Two = 3

Not enough reviews yet to summarise bugs or requests.

Diamond District

Reported bugs

2 issues
  • Repeating voicemail issue
  • UI overlapping issues during jewelry creation

Requested features

5 requests
  • Wholesale gem selling option
  • 3D view of inventory
  • More gems and companies
  • Ability to choose gems for requests
  • Improved gem storage and selling options

In-app purchases

2 purchases

One Plus Two = 3

One-time2
  • 100 Hint Bulbs$0.99
  • 1000 Hint Bulbs$4.99
7 purchases

Diamond District

Subscriptions1
  • Terminal Pro$4.991 Month
One-time6
  • Whistle Feed Widget$1.99
  • Obsidian Relay$2.99
  • Premium Icon Themes$2.99
Show 3 more
  • Winston Pro$3.99
  • Founder Badge$4.99
  • The Atelier$9.99

Questions

Is One Plus Two = 3 free?
One Plus Two = 3 is free to download, with in-app purchases available.
Is Diamond District free?
Diamond District is free to download, with in-app purchases available.
Which has better reviews, One Plus Two = 3 or Diamond District?
Diamond District is rated higher. One Plus Two = 3 averages 3.0 out of 5 from 4 ratings, while Diamond District averages 4.8 from 356 ratings.
Do One Plus Two = 3 or Diamond District have ads?
One Plus Two = 3 shows ads; Diamond District does not.
Which is updated more often, One Plus Two = 3 or Diamond District?
One Plus Two = 3 ships an update every 2 months, and Diamond District weekly. Most recently, One Plus Two = 3 was updated on October 8, 2026 and Diamond District on October 30, 2026.

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