{"slug":"firebase","name":"Firebase","url":"https://firebase.google.com","category":"database","categoryName":"Databases","tagline":"Google's app backend, strongest on mobile","description":"Firestore or the Realtime Database, plus auth, push notifications, crash reporting and analytics in one console. Offline sync on mobile is the thing it does better than anything else here.","bestFor":"Mobile apps that need realtime sync and offline support out of the box","pricing":{"fromUsd":null,"oneTimeUsd":null,"hasFreeTier":true,"freeTier":"Spark plan is free forever: 1 GiB Firestore storage, 50K document reads and 20K writes a day, 50K auth users, 10 GB hosting.","trialDays":null,"plans":[{"name":"Spark","monthlyUsd":0,"annualMonthlyUsd":null,"oneTime":false,"currency":"USD","includes":"1 GiB Firestore, 50K reads / 20K writes / 20K deletes per day, 10 GiB egress a month, 50K auth users, 10 GB hosting, no card required"},{"name":"Blaze","monthlyUsd":null,"annualMonthlyUsd":null,"oneTime":false,"currency":"USD","includes":"Pay as you go with no monthly fee: the Spark allowances stay free, then Google Cloud rates apply. Cloud Functions $0.40 per million invocations after 2M, Cloud Storage $0.026/GB after 5 GB"}],"summary":"Free, then pay per use","model":"usage","history":[],"trackedSince":"2026-08-27","currentSince":null},"openSource":false,"indieBuilt":false,"maker":null,"pros":["Offline sync and realtime on mobile are still the best in this list","Auth, push, crash reporting and analytics come with it, in one console","The free tier never expires and needs no card"],"cons":["Firestore is a proprietary document store, so leaving Firebase means rewriting your data layer, not exporting it","Blaze bills usage with no cap turned on by default, so a runaway loop becomes a very large invoice","No joins and awkward aggregation: queries that are one line of SQL become application code"],"specs":{"Engine":"Firestore (document) and Realtime Database","Free tier":"1 GiB, 50K reads a day","Self-host":"No","Auth and storage built in":"Yes","Scales to zero":"Yes","Portability":"Proprietary, expect a rewrite to leave"},"rating":null,"reviewCount":0,"editorsPick":false,"promoted":false,"sources":["https://firebase.google.com","https://firebase.google.com/pricing"],"page":"https://www.saas4that.com/tools/firebase","agent":{"ready":false,"mcp":null,"api":null,"cli":false,"webhooks":false,"zapier":false,"docs":null,"auth":null,"instructions":null,"howItWorks":null}}