DriveThruRPG Library vs Instant Armory
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
DriveThruRPG Library
Easily sync and organize your entire collection of RPG files on your mobile device. Keep your digital library updated automatically and access any file with your preferred viewer. Access purchases from various OneBookShelf sites.
- Sync entire library to device
- Organize by publisher/rule system
- Custom collection organization
- Automatic file updates
- Open files in favorite viewer
- Access OneBookShelf purchases
Read full descriptionHide full description
This app allows you to sync your DriveThruRPG Library easily to your mobile device and keep it organized for easy access. - Sync your entire Library to your device easily. - Organize all of your RPG files by publisher and/or by rule system. - Organize your library using custom Collections that you define. - Automatically keep your files up to date. When you run a Library sync in the app, it can download new files for any titles that publishers have updated since your last download. - Click to Open any file in your favorite viewer. - Get files you've purchased at any OneBookShelf site, including DriveThruRPG, RPGNow, WargameVault, DMsGuild, DriveThruComics, DriveThruFiction, and more.
Instant Armory
Create custom arms, armor, and equipment for fantasy tabletop RPGs with a vast library of hand-drawn art. Record descriptions and stats, then roll dice within the app or print physical cards for your games.
- Design custom fantasy equipment
- Extensive hand-drawn art library
- Record descriptions and stats
- In-app dice rolling
- Printable equipment cards
Read full descriptionHide full description
Instant Armory allows you to design weapons, armor, and equipment for fantasy tabletop roleplaying games, such as Dungeons & Dragons or Pathfinder, using a myriad of hand-drawn art. Record a description and stats, and roll dice directly in-app or print equipment cards for use at the table.
Screenshots
Verdict
The clearest difference is review sentiment: Instant Armory at 85% against DriveThruRPG Library's 29%. Instant Armory also leads on rating (4.7 vs 3.1) and update cadence (fortnightly vs every 9 months). DriveThruRPG Library's advantage is in-app purchases (none vs 7). On price, ads, device support and iOS requirement 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
Both are free to download. Instant Armory sells 7 one-off in-app purchases. DriveThruRPG Library asks for nothing beyond the download.
Instant Armory holds the better App Store score, 4.7 against 3.1. That said, the two scores are not equally well evidenced: Instant Armory has 267 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 29% of DriveThruRPG Library's written reviews are positive against 85% of Instant Armory's.
DriveThruRPG Library ships an update every 9 months, Instant Armory fortnightly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | DriveThruRPG Library | Instant Armory |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (31 ratings) | 4.7 (267 ratings) — better |
| Positive reviews | 29.2% of reviews | 84.9% of reviews — better |
| Number of ratings | 31 | 267 — better |
| Update frequency | Every 9 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.5 — better | 15.0 |
| Further details — not scored | ||
| Size | 49 MB | 151 MB |
| Age rating | 12+ | 9+ |
| Developer | OneBookShelf, Inc. | TrapStreet Studios |
Customer experience
DriveThruRPG Library
Instant Armory
User reviews
DriveThruRPG Library
From 31 App Store ratingsWhat we love
- 👍 Organizes DTRPG library
- 👍 Good for reading PDFs
- 👍 Useful for organizing purchases
- 👍 Syncs to account
- 👍 Downloads PDFs to devices
Room to improve
- 🐛 App won't launch
- 🐛 App crashes on start
- 🐛 Downloads fail
- 🐛 Syncing problems
- 🐛 Bare bones functionality
Instant Armory
From 267 App Store ratingsWhat we love
- 🎨 Great for designing items
- 🖌️ Amazing artwork and design
- 👍 User-friendly interface
- 💡 Useful for DMs
- 🚀 Saves time for DMs
Room to improve
- 💸 Too much paywall/DLC
- 💰 Limited free content
- 🪙 Difficult to get coins
- 🔓 Many features locked
- 🛒 High DLC pricing perception
Bugs and requests
DriveThruRPG Library
Reported bugs
65 issues- App flashes logo and crashes
- App won't launch
- App crashes on start
- Login doesn't work
- Syncing problem
Show 60 moreShow fewer
- Downloads not going when not focused
- Occasional trouble downloading
- Continually shows error in downloading process
- Endless errors and failed downloads
- App won't open on iPad Air 2
- Pinch-zooming behaves oddly
- Pages load when on-screen, cache cleared when off-screen
- Latest update causes crashing on start
- Newest version doesn't start on iOS 15.8.5
- Struggle to download library on iOS
- Cannot open files on iPad
- Tapping title just selects/unselects
- No button or option to open PDF
- Internal server error on login
- Network errors
- App hangs
- Says not connected to internet
- Failed to create collections
- Refuses to sync
- Error refreshing library
- Invalid server response
- Problems with synchronization
- Thumbnails almost never load
- App thinks I'm not connected to the internet
- No response from developer
- Advertising app that doesn't work
- Error stating to check internet connection
- Error has existed for quite some time
- Constantly getting error saying there's no internet
- Always errors no matter what Wi-Fi
- Complains about Internet connection when other apps work
- Message to check internet connection
- Won't synch
- Login is weird, email+password didn't work
- Login not possible
- Files organised by publisher is not useful
- Interface not re-sizeable
- Navigation poor; returns to start of list
- Selecting multiple titles doesn't de-select automatically
- Collections duplicating
- Deleting duplicated collection deletes all instances
- Collections need to be more visible
- No horizontal page swipe controls
- Does not use the Files app
- UI doesn't use built-in iPadOS features
- Cannot find way to customize download folder
- Overall UI not intuitive
- Collections does not work
- Pop up error when creating collections
- Logged in to a library with only one title
- Getting duplicates and triplicates of books
- App is totally broken
- Downloads random things, not well built
- No progress indicators for downloading
- Not designed for portrait mode
- Doesn't provide a way to open downloaded files in choice of PDF reader
- Doesn't provide a way to use modern file management tools
- Uses built-in minimal PDF viewer tools
- No bookmarking, annotations, or other rich interaction
- No means for extracting/viewing contents of zips
Requested features
25 requests- Add landscape for iPhones
- Add notification or live activity for downloads
- Add iCloud storage option for MacOS/iPad
- Add bookmarking system
- Add horizontal page swipe controls
Show 20 moreShow fewer
- Allow choosing download location
- Integrate with Files app
- Support zip files
- Support extracting zip files
- Add a clear button to the search bar
- Improve filtering options
- Add a dark mode option
- Improve PDF viewer functionality
- Allow shop access within the app
- Filter by shop filters
- Remember position in a book
- Improve UI to follow Apple's standards
- Allow customization of download folder
- Add a phone version
- Improve navigation to avoid returning to start of list
- Make collections more visible
- Filter for uncollected titles
- Manage collections from web interface
- Add ability to move from top of list to bottom
- Fix duplicate book entries
Instant Armory
Reported bugs
3 issues- Constant crashing
- Cannot purchase items on cellular data
- Unlock all features bug (resolved)
Requested features
13 requests- More shields with varied options
- Add crossbows
- Design bard instruments
- More armor variants
- More customization options
Show 8 moreShow fewer
- More free coins/slots
- Add more 'coming soon' weapons
- Enchantments for free
- More options without paying
- Size slider for weapon pieces
- Designated 'save' button
- More color options
- More weapon parts and colors
In-app purchases
DriveThruRPG Library
No in-app purchases
Instant Armory
- 1 COIN$0.49
- 5 COINS$1.99
- 10 COINS$3.99
Show 4 moreShow fewer
- Gift Unlock Content$7.99
- Gift Unlock Everything$7.99
- Unlock Content$9.99
- Unlock Everything$9.99
Questions
Is DriveThruRPG Library free?
Is Instant Armory free?
Which has better reviews, DriveThruRPG Library or Instant Armory?
Do DriveThruRPG Library or Instant Armory have ads?
Which is updated more often, DriveThruRPG Library or Instant Armory?
Other comparisons
