RPG MO vs Junk Jack
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
RPG MO
Embark on an addictive online multiplayer role-playing adventure. Fight monsters, master 19 diverse skills, and dedicate your time to this retro-style MMORPG. Designed for adult gamers but enjoyable for younger players too.
- Online multiplayer role-playing
- Monster combat
- 19 distinct skills to master
- Retro MMORPG style
- Time and dedication focused gameplay
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RPG MO is an online multiplayer role-playing game that requires time and dedication. The game is created with adult gamers in mind but younger players can also enjoy it. Overall it is a simple yet addictive game where you can fight monsters and try out 19 different skills.
Junk Jack
Explore, build, and survive in procedurally generated 2D worlds. This sandbox adventure offers creative building, combat, and exploration across multiple planets, with options for both single-player and multiplayer experiences.
- Procedurally generated worlds
- Multiplayer support
- Creative mode
- Extensive equipment system
- Adventure mode across multiple planets
- Electronics engine for complex creations
- Farming system
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Welcome to Junk Jack! It is a 2D sandbox where you can explore, build and survive in randomly generated procedural worlds, full of monsters, hidden treasures and beautiful landscapes, now even in multiplayer with friends! * Chosen by the AppStore as one of the #BestOf2013 crafting games in 9 countries! * We are glad to deliver you the best Junk Jack experience ever imagined! A sequel which brings the game to a whole new level with multiplayer, multiple planets, creative mode, liquids, plenty of equipment to customize your character and much more! Plus all the features you loved from Junk Jack Retro (and, we hope, less features you hated!) This is not a freemium game, buy it once and enjoy the full game experience! Features: - local multiplayer up to 4 players and online multiplayer up to 2 players - a creative mode to unleash your creativity and build everything you can imagine - a fully featured equip system with more than 400 different wearable items to enhance your adventures or just to make your friends envy! - polished pixel graphics, full retina support - combat Uber Mobs and obtain their loot by destroying rare world altars! - a fully fledged electronics engine allows the creation of complex widgets, even complete CPUs! - tenths of wonderful music tracks by Bright Primate - intuitive controls: swipe to move and tap to interact with everything - an adventure mode that will let you travel between 12 multiple planets with different and intriguing environments - liquids to enhance or impede your explorations: avoid dangerous lava or go for a swim in a surface lake! - infinite procedurally generated worlds to make every adventure always different - a dynamic day/night cycle that blends with wonderful skies in parallax - a vibrant coloured lighting engine that will make you enjoy every minute spent in Junk Jack worlds - character customization, you can play also as a female! - a rewarding exploration thanks to treasure chests full of cool things - tamable dogs, cats and many other animals that will follow you around - more than 1000 crafts to be built - more than 2000 treasures - more than 440 placeable items - more than 270 different creatures and monsters - explosives, shelves, signs, dyes and all the features you liked in Junk Jack Retro - a complete farming system with more than 70 plants, even many alien and exotic plants - an in game guide that will teach you how to play - two ways of crafting to accommodate even needs of casual users This is just the beginning, we already have many ideas for the next updates! For every issue just contact us on our forum at forum.pixbits.com
Screenshots
Verdict
The clearest difference is price: RPG MO at Free against Junk Jack's $4.99. Junk Jack's advantage is ratings volume (471 vs 34) and review sentiment (78% vs 65%). On rating, update cadence, ads and in-app purchases 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
RPG MO is free to download; Junk Jack costs $4.99 up front. RPG MO sells 6 one-off in-app purchases and Junk Jack sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.3 for RPG MO against 4.4 for Junk Jack. That said, the two scores are not equally well evidenced: Junk Jack has 471 ratings behind it against 34, so its average is the more settled of the two. Written reviews are what separate them: 65% of RPG MO's written reviews are positive against 78% of Junk Jack's.
RPG MO ships an update every 2 months, Junk Jack every 3 months. The most recent releases landed on September 21, 2026 and September 25, 2026 respectively.
| Parameter | RPG MO | Junk Jack |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.3 (34 ratings) | 4.4 (471 ratings) — better |
| Positive reviews | 65.0% of reviews | 78.0% of reviews — better |
| Number of ratings | 34 | 471 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 154 MB | 67 MB |
| Age rating | 12+ | 4+ |
| Developer | Margus Ojanurme | Pixbits SRL |
Customer experience
RPG MO
Junk Jack
Bugs and requests
RPG MO
Not enough reviews yet to summarise bugs or requests.
Junk Jack
Reported bugs
5 issues- Crashes when joining multiplayer
- Inventory items disappearing
- Crafting recipes not working
- Compatibility issues with newer iOS versions
- Multiplayer desync and desyncing
Requested features
5 requests- Controller support
- More planets/biomes
- NPC/civilization features
- Expanded crafting/progression
- Taming/breeding mechanics
In-app purchases
RPG MO
- 500 MOS$4.99
- 1250 MOS$11.99
- 2100 MOS$19.99
Show 3 moreShow fewer
- 3200 MOS$29.99
- 5500 MOS + 2x EXP potion$49.99
- 11250 MOS + two 2x EXP potions$99.99
Junk Jack
- Breeding Hat$0.99
- Extended Day$0.99
- Complete Craftbook$0.99
Show 8 moreShow fewer
- Dark Ninja$0.99
- Mining Helmet$0.99
- Hatcher Hat$0.99
- Santa Hat$0.99
- Chemistry Book$0.99
- Pocket Pug$0.99
- Legendary Pole$0.99
- Instant Planets$1.99









