Comparison

Demon RPG vs simian.interface++

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

Head to head
About

Demon RPG

Embark on an adventure to reclaim your throne after betrayal. Merge items to become stronger, utilize diverse skills for combat, and craft equipment to defeat monsters. Uncover a twisted plot in this epic RPG.

Highlights
  • Item merging for upgrades
  • Diverse combat skills
  • Crafting swords, shields, potions
  • Over 100 unique items
  • Twisted plotline
Features
Read full description

The Demon who ruled Hell, betrayed! The outskirts of hell, the adventure of the demon begins to get back the throne. Features ●If you merge the same item, you can get the next stronger item ●You can use various skills to lead effective combat and growth ●Craft swords, shields, and potions to defeat evil monsters ●More than 100 various items! ●Check twist plot in the end! Please contact owings37@gmail.com for game-related inquiries.

About

simian.interface++

An abstract puzzle game that challenges players with pattern recognition and intuition. It features a unique soundtrack, an original version of the game, and a new infinite mode with procedurally generated content for endless replayability.

Highlights
  • Abstract puzzle experience
  • Pattern recognition challenges
  • Intuitive gameplay
  • Original game included
  • Infinite_loop mode
  • Procedurally generated levels
Features
Read full description

simian.interface++, the fully featured update to the Flash game simian.interface, is an abstract puzzle experience for simian participants of all ages and abilities. There are no explicit rules, no instructions, and very simple controls. Inspired by tabletop puzzles, modern art, and cognitive psychology experiments, simian.interface++ presents challenges that must be solved using pattern recognition, intuition, and experimentation. features: - an incredible soundtrack composed by chiptune artist Note! - the original simian.interface - the new 'infinite_loop' mode, with procedurally generated levels, and randomized music and story content! infinite replay value! *This is essentially the same version of the game that was published on iOS by Chillingo from 2014-2017. However, it has been updated for modern devices, and is now self-published so we can ensure that it stays functional and available. Apologies to anyone who purchased the old version.

Screenshots

Demon RPG4 screens
simian.interface++4 screens

Verdict

The call

The clearest difference is ads: simian.interface++ at none against Demon RPG's shown. simian.interface++ also leads on update cadence (daily vs every 14 months) and rating (5.0 vs 4.6). Demon RPG's advantage is ratings volume (61 vs 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. Demon RPG sells 5 one-off in-app purchases and simian.interface++ sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

simian.interface++ holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Demon RPG has 61 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 83% of Demon RPG's written reviews are positive against 100% of simian.interface++'s.

UpkeepUpdate frequency

Demon RPG ships an update every 14 months, simian.interface++ daily. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Demon RPG versus simian.interface++: the parameters behind the verdict, then further details
ParameterDemon RPGsimian.interface++
PriceFreeFree
Rating4.6 (61 ratings)5.0 (5 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings61 — better5
Update frequencyEvery 14 monthsDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size91 MB152 MB
Age rating9+4+
DeveloperSeHyeon Imvested interest LLC

Customer experience

Demon RPG

All ratings61 ratings
Positive88.5%
Neutral8.2%
Negative3.3%
Written reviews30 reviews
Positive83.3%
Neutral13.3%
Negative3.3%

simian.interface++

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

5 purchases

Demon RPG

One-time5
  • Purchase 20 GEMS$0.99
  • Remove ADS$2.99
  • 보석 120개 구매$4.99
Show 2 more
  • Purchase 280 GEMS$9.99
  • Purchase 1800 GEMS$48.99
1 purchases

simian.interface++

One-time1
  • Buy Full Game$1.99

Questions

Is Demon RPG free?
Demon RPG is free to download, with in-app purchases available.
Is simian.interface++ free?
simian.interface++ is free to download, with in-app purchases available.
Which has better reviews, Demon RPG or simian.interface++?
simian.interface++ is rated higher. Demon RPG averages 4.6 out of 5 from 61 ratings, while simian.interface++ averages 5.0 from 5 ratings.
Do Demon RPG or simian.interface++ have ads?
Demon RPG shows ads; simian.interface++ does not.
Which is updated more often, Demon RPG or simian.interface++?
Demon RPG ships an update every 14 months, and simian.interface++ daily. Most recently, Demon RPG was updated on October 24, 2026 and simian.interface++ on October 24, 2026.

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