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APIs · head to head

Backendless vs Solaris

Backendless logo

Backendless

APIs

Visual app development platform with REST APIs and cloud backend

From
Free
Rated
-
Full reviewWebsite
Solaris logo

Solaris

APIs

German banking as a service with a full banking licence and a live regulatory problem

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Backendless has a free tier, so it costs nothing to try first.
  • Each has a real cost: Backendless free tier limited to 50 API requests per minute and 20 database tables; Solaris baFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • They diverge on capability: Backendless covers REST API, Solaris covers German banking licence.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Backendless and Solaris actually diverge.

Attributes where Backendless and Solaris differ
AttributeBackendlessSolaris
Starting priceFreeOn request
Pricing modelUnknownquote
Free tierYesNo
PlatformsCloud, Visual builderWeb, API
Founded2012Unknown

Identical on both: user rating (Not yet rated), category (APIs).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Backendless

  • REST API
  • Real-time database
  • Cloud code
  • Custom integrations
  • Webhooks
  • Cloud functions
  • Cloud support
  • Visual builder support

Only in Solaris

  • German banking licence
  • IBAN accounts
  • Card issuing
  • Lending as a service
  • Digital assets and custody
  • SEPA payments
  • KYC and onboarding
  • Deposit protection

What people use each for

The jobs each tool is most often brought in to do.

Backendless

  • API Developmentnot Solaris
  • API Gatewaynot Solaris
  • API Testingnot Solaris
  • API Documentationnot Solaris
  • Microservicesnot Solaris

Solaris

  • A retailer or platform launching a German current account or card product without applying for its own licencenot Backendless
  • A fintech that needs deposit taking and lending, which an e-money licence cannot providenot Backendless
  • A European business needing German IBANs because customers reject foreign IBANs for salary and direct debitnot Backendless
  • A company requiring German statutory deposit protection on customer balances as a product claimnot Backendless

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Backendless

  • Free tier limited to 50 API requests per minute and 20 database tables
  • Smaller community and integration ecosystem compared to Firebase or AWS
  • Customization beyond codeless tools requires developer expertise
  • Limited documentation for advanced use cases and edge cases

Solaris

  • BaFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • BaFin fined Solaris EUR 6.5 million in March 2024 for systematically late suspicious activity reports and EUR 500,000 for breaching large exposure limits between January 2022 and March 2024, which is a track record a partner inherits reputationally.
  • Solaris has previously needed BaFin approval before onboarding new corporate clients, which can turn a commercial decision to launch into a regulatory timetable outside your control.
  • The 2024 restructuring involved job cuts and the closure of parts of a business unit, so product lines a partner depends on may not have the engineering behind them that the sales process implies.
  • SBI Holdings acquired majority control in 2025, so strategic direction now sits with a Japanese financial group whose priorities for the European business may differ from the roadmap you were sold.

Pricing, plan by plan

Backendless

Free
  • FreeFree
    • 50 API requests/minute
    • 20 database tables
    • 1 GB file storage
  • Scale Variable$15/month
    • Unlimited API requests/month
    • 100 database tables
    • 10 GB file storage
  • Scale Fixed$15/month
    • Same as Scale Variable
    • Fixed monthly pricing

Solaris

On request
  • Solaris banking as a service$undefined/year
    • Quoted per partner, typically setup fee plus monthly platform fee
    • Per account, per card and per transaction charges on top
    • Interchange sharing arrangements negotiated per programme

Which should you pick?

Choose Backendless if

  • You need rest api.
  • You want to start without paying.
  • You work on Cloud, Visual builder.
  • You also want real-time database.
Backendless review

Choose Solaris if

  • You need german banking licence.
  • You work on Web, API.
  • You also want iban accounts.
Solaris review

Questions people ask

Is Backendless or Solaris better?
Neither clearly leads. Backendless starts at Free and Solaris at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Backendless or Solaris?
Backendless has a free tier; the other does not. Paid plans start at Free for Backendless and On request for Solaris.
Does Backendless or Solaris run on more platforms?
Backendless runs on Cloud, Visual builder. Solaris runs on Web, API.
Can I use Backendless for free?
Yes. Backendless has a free tier, so you can try it without paying. Solaris starts at On request.
What is Backendless best used for?
Backendless is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Solaris is typically brought in for.
What can Backendless do that Solaris cannot?
Backendless covers REST API, Real-time database, Cloud code, Custom integrations. Solaris covers German banking licence, IBAN accounts, Card issuing, Lending as a service.

Answered from the vendors’ own pages

Backendless: Does Backendless have a free tier?

Backendless Free plan ($0/month) includes 50 API requests per minute, 20 database tables, 1 GB file storage, 1 visualization, 2 security roles, and basic cloud code capabilities.

Source
Solaris: Does Solaris have a real banking licence?

Yes. Solaris SE is a German credit institution, which is why it can offer deposits and lending, unlike e-money based competitors.

Backendless: What features does the Scale plan include?

Scale plan ($15+/month) provides unlimited API requests per month, 100 database tables, 10 GB file storage, 5 visualizations, 10 custom API keys, daily backups, free SSL certificates, and 1,000 real-time connections.

Source
Solaris: Is the BaFin action still live?

The special representative appointed in 2022 had the mandate extended in July 2024, and fines were issued in March 2024. Treat supervisory oversight as an active condition in your diligence.

Backendless: Can I add more storage or increase API limits?

Yes, Backendless offers Function Packs ranging from $5-$399/month to increase specific limits such as storage, API requests, or security features.

Source
Solaris: Who owns Solaris now?

SBI Holdings of Japan agreed in December 2024 and January 2025 to take a majority stake of over seventy per cent for around EUR 100 million.

Backendless: Does Backendless support offline functionality?

Backendless supports real-time sync and offline capabilities for mobile apps, allowing data to sync when connectivity is restored.

Source
Backendless: Is Backendless Pro available for self-hosting?

Yes, Backendless Pro Community Edition is available under free licensing for core functionality. Managed Backendless is a paid option for self-hosted deployments with request-based pricing.

Source
Backendless: What are Backendless's integration limitations?

While Backendless supports many integrations, it has a smaller integration library compared to competitors. Finding solutions to edge cases or complex setups may require more development effort.

Source
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