Best GUN Alternatives in 2026
The top GUN alternatives are Couchbase Lite, Ditto and AWS Amplify DataStore: 15 mobile databases our editors would look at instead of GUN, in our ranking order.
GUN: A flexible self-hosted choice for offline-first, peer-synchronized web applications. Where it falls short: requires self-hosted deployment and infrastructure management.
Switching from GUN? For most mobile databases buyers the best GUN alternative is Couchbase Lite, built for broad cross-platform offline NoSQL apps. On a budget, RxDB starts at $99/mo. Ditto has a free plan.
Why People Look for a GUN Alternative
- Requires self-hosted deployment and infrastructure management
- Verified platform coverage is narrower than mobile-focused alternatives
- Its broad feature set may require more architectural decisions
Quick Picks by What You Need
- Best overallCouchbase Lite9.4
Broad cross-platform offline NoSQL apps
Visit Couchbase Lite - Lowest priceRxDB8.2
Paid plans from $99/mo
Visit RxDB - Best free optionDitto9.2
Has a free plan
Visit Ditto
All 15 GUN Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forBroad cross-platform offline NoSQL apps
- Better than GUN:
- Editor score 9.4 vs 6.4
A broad offline NoSQL option with local storage, synchronization, search, and cross-platform SDKs.
9.4/10★★★★★Visit Couchbase -
Best forPeer-to-peer and intermittently connected apps
- Better than GUN:
- Editor score 9.2 vs 6.4
A strong fit for apps that must sync across peers when connectivity is unreliable.
- Offline mode
9.2/10★★★★★Visit Ditto -
Best forCross-platform apps needing cloud sync
- Better than GUN:
- Editor score 9.0 vs 6.4
A focused choice for cross-platform apps that need offline data and AppSync sync.
- Offline mode
9.0/10★★★★☆Visit AWS Amplify -
Best forCloud-backed document applications
- Better than GUN:
- Editor score 8.9 vs 6.4
A cloud-managed document database with offline persistence, real-time updates, and vector search.
8.9/10★★★★☆Visit Firestore -
Best forReal-time Firebase mobile applications
- Better than GUN:
- Editor score 8.8 vs 6.4
A strong fit for Firebase apps that need real-time sync and offline mobile access.
- Offline mode
8.8/10★★★★☆Visit Firebase -
Best forSelf-hosted apps needing offline sync
- Better than GUN:
- Editor score 8.6 vs 6.4
A feature-rich self-hosted backend for apps that need offline sync.
- Offline mode
8.6/10★★★★☆Visit Parse Platform -
Best forCross-platform apps needing local sync and vectors
- Better than GUN:
- Editor score 8.5 vs 6.4
A flexible local-first database for cross-platform apps that need sync and on-device vectors.
8.5/10★★★★☆Visit ObjectBox -
Best forLegacy object-oriented mobile apps with cloud sync
- Better than GUN:
- Editor score 8.3 vs 6.4
A capable object-oriented mobile database now discontinued after Atlas Device SDK end-of-life.
8.3/10★★★★☆Explore Realm -
Best forWeb and mobile local-first teams
- Better than GUN:
- Editor score 8.2 vs 6.4
A flexible local-first database for offline web and mobile apps that need synchronization.
8.2/10★★★★☆Visit RxDB -
Best forFlutter teams wanting type-safe SQL
- Better than GUN:
- Editor score 8.1 vs 6.4
A capable open-source Flutter database layer, with synchronization handled through integrations.
- Offline mode
8.1/10★★★★☆Visit Drift -
Best forKotlin Multiplatform SQLite applications
- Better than GUN:
- Editor score 8.0 vs 6.4
Room suits Kotlin Multiplatform apps that need typed, structured local SQLite storage.
- Offline mode
8.0/10★★★★☆Visit Room -
Best forReact Native offline-first applications
- Better than GUN:
- Editor score 7.7 vs 6.4
A local-first mobile database for React Native apps that need reactive offline data.
- Offline mode
7.7/10★★★★☆Visit WatermelonDB -
Best forFlutter apps needing typed local queries
- Better than GUN:
- Editor score 7.6 vs 6.4
A free, typed local database for Flutter apps that need advanced offline queries.
- Offline mode
7.6/10★★★★☆Visit Isar -
Best forBrowser apps needing CouchDB replication
- Better than GUN:
- Editor score 7.5 vs 6.4
A focused browser database for local storage, CouchDB replication, and offline synchronization.
- Offline mode
7.5/10★★★★☆Visit PouchDB -
Best forApple-platform apps needing managed sync
- Better than GUN:
- Editor score 7.4 vs 6.4
A strong Apple-focused option for structured data, sync, subscriptions, and notifications.
7.4/10★★★★☆Visit Apple
GUN Alternatives: Common Questions
What is the best alternative to GUN?
Couchbase Lite: #1 in our Mobile Databases ranking, with an editor score of 9.4 out of 10. A broad offline NoSQL option with local storage, synchronization, search, and cross-platform SDKs.
Is there a free alternative to GUN?
Yes. Ditto, AWS Amplify DataStore, Firestore, Firebase Realtime Database and Parse Platform have a free plan or a free tier (13 of the 15 alternatives on this page).
Why do people look for GUN alternatives?
Requires self-hosted deployment and infrastructure management; Verified platform coverage is narrower than mobile-focused alternatives; Its broad feature set may require more architectural decisions.
How do I switch from GUN?
Export your data from GUN (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel GUN.
How to Switch from GUN
- Export your data from GUN (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel GUN.
GUN vs Each Alternative
| # | Tool | Free plan | Paid from | Offline mode | Data synchronization | Mobile platforms | Score |
|---|---|---|---|---|---|---|---|
| 25 | GUN | Yes | Free | 6.4 | |||
| 1 | Couchbase Lite | 9.4 | |||||
| 2 | Ditto | Yes | Yes | Bidirectional | iOS, Android | 9.2 | |
| 3 | AWS Amplify DataStore | Free | Yes | Bidirectional | iOS, Android, React Native, Flutter | 9.0 | |
| 4 | Firestore | Yes | 8.9 | ||||
| 5 | Firebase Realtime Database | Yes | Yes | Bidirectional | iOS and Android | 8.8 | |
| 6 | Parse Platform | Free | Yes | Bidirectional | iOS, Android, Flutter/Dart | 8.6 | |
| 7 | ObjectBox | Yes | 8.5 | ||||
| 8 | Realm | Free | iOS, Android, Xamarin | 8.3 | |||
| 9 | RxDB | Yes | $99/mo | 8.2 | |||
| 10 | Drift | Yes | Free | Yes | Bidirectional | Android, iOS | 8.1 |
| 11 | Room | Free | Yes | None | Android, iOS | 8.0 | |
| 12 | WatermelonDB | Free | Yes | Bidirectional | iOS, Android | 7.7 | |
| 13 | Isar | Yes | Free | Yes | iOS, Android | 7.6 | |
| 14 | PouchDB | Yes | Free | Yes | Bidirectional | 7.5 | |
| 15 | CloudKit | No | $99/yr | No | Bidirectional | iOS, iPadOS | 7.4 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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