SoloFlow vs Indy: mobile invoicing for freelancers in 2026

Indy is one of the heavyweights of freelance management in France: free invoicing for life, accounting, tax filings. SoloFlow, which arrived in 2026, bets on a mobile-first approach and dual-market Belgium-France coverage. With mandatory e-invoice receiving approaching for all French businesses (1 September 2026), here is an honest comparison to help you choose with full knowledge of the facts.

In short: the free leader versus the mobile challenger

Indy offers free, unlimited invoicing for life, complemented by a Premium offer (accounting, VAT, OCR) at €15/month. It’s a massive and perfectly legitimate argument: hard to be cheaper than free. SoloFlow, for its part, stands out on one precise point where Indy shows a real limitation: creating invoices directly from mobile.

Because behind its app, Indy has a constraint that many users discover in practice: the mobile app lets you view, but not create, an invoice. Creation happens on a computer. SoloFlow, by contrast, is designed to issue a complete invoice from the phone, including offline.

Comparison table

Criterion	SoloFlow	Indy
Free invoicing	Yes (10 docs/month, 50 contacts)	Yes, unlimited for life
Paid offer	€9.99/month or €99.99/year	Premium €15/month
Invoice creation on mobile	Yes	No (viewing only)
Native mobile app	iOS + Android	iOS + Android
Web app	Yes (app.soloflow.online)	Yes
Peppol / e-invoicing	Send + receive (BE and FR)	FR compliant, no Belgian Peppol
Plateforme Agréée (FR)	Relies on A-Cube, a DGFiP-registered PA	Its own DGFiP-registered PA
Built-in CRM	Yes	No
Tasks + calendar	Yes (native calendar sync)	No
Offline mode	Yes (real offline-first)	No
Accounting / VAT / filings	No	Yes (Premium)
Markets / languages	Belgium + France, 7 languages	France only

What Indy does better

Let’s be frank: on several fronts, Indy is very strong, which explains its leading position in France.

Free unlimited invoicing for life. Where SoloFlow caps its free version at 10 documents per month, Indy sets no ceiling on free invoicing. For a freelancer who wants to invoice without ever paying, it’s a weighty asset.

Its own Plateforme Agréée status. Indy is registered as a Plateforme Agréée (PA — French government-accredited platform) with the DGFiP, in its own name. It’s a signal of regulatory solidity within the French e-invoicing reform.

Integrated accounting. With its Premium offer, Indy handles VAT, accounting and receipt OCR. It’s a complete ecosystem for managing your taxes, whereas SoloFlow offers no filing module.

Maturity and social proof. Indy has long been established on the French market, with a large user base. SoloFlow, launched in 2026, starts from further back on that front.

What SoloFlow does better

Creating an invoice from your phone. This is the most concrete day-to-day difference. With Indy, if you want to issue an invoice, you open your computer. With SoloFlow, you create and send it from your mobile, in moments, even without a signal. For a tradesperson, a consultant on the move or a freelancer who invoices “in the field”, it’s a real gain.

A real mini-ERP. SoloFlow includes a CRM (Contact → Lead → Qualified → Client), tasks and a calendar synced with yours. You track your prospects and appointments where you manage your invoices. Indy doesn’t offer this sales dimension.

Belgium + France coverage and Peppol. SoloFlow handles sending and receiving Peppol invoices on both sides of the border and comes in 7 languages. Indy is French-market-only and doesn’t handle Belgian Peppol. For a freelancer with clients in both countries, the difference is structural. In France, SoloFlow relies on A-Cube, a Plateforme Agréée registered with the DGFiP.

Real offline mode. SoloFlow works without a connection and syncs afterwards. Indy depends on an active connection.

The free question: free to do what?

Indy’s “free for life” is real and honest. But ask yourself the right question: free to do what, and from where? If you invoice from your desk, on a computer, Indy’s free offer is excellent. If your reality is invoicing on the move, from your phone, the fact that Indy doesn’t allow invoice creation on mobile changes everything: the “free” doesn’t cover your main use case.

SoloFlow isn’t free without limits (10 documents/month on the free version, then €9.99/month for unlimited use), but it does on mobile what Indy doesn’t. So the choice depends less on price than on the way you work.

Which tool for which profile?

Choose Indy if: you’re a freelancer in France, you invoice mainly from a computer, you want free unlimited invoicing and possibly integrated accounting, and you have no Belgian clients.

Choose SoloFlow if: you invoice on the move and want to create invoices on mobile, you’re looking for a tool that also manages your clients, tasks and appointments, you work in Belgium and France, or you need a real offline mode.

FAQ

Is it true that you can’t create an invoice on mobile with Indy?

Based on information published in July 2026, Indy’s mobile app lets you view your invoices but not create them: creation happens on a computer. SoloFlow, by contrast, lets you create and send an invoice directly from your phone.

Is Indy a Plateforme Agréée for French e-invoicing?

Yes, Indy is registered as a Plateforme Agréée with the DGFiP in its own name. For its part, SoloFlow relies on A-Cube, a Plateforme Agréée registered with the DGFiP.

Is SoloFlow free like Indy?

SoloFlow offers a free version (10 documents per month, 50 contacts, unlimited quotes), but not Indy’s free unlimited invoicing for life. For unlimited use, SoloFlow moves to €9.99/month. The comparison hinges mostly on mobile features, not just on price.

What are the French e-invoicing deadlines?

Receiving electronic invoices becomes mandatory for all businesses on 1 September 2026, with issuing for large companies and mid-caps on the same date. Issuing for small businesses, SMEs and micro-entrepreneurs follows on 1 September 2027. Details in our 2026 guide.

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See also our SoloFlow vs Abby comparison, and our overview of free vs paid invoicing software.

Comparison written by the SoloFlow team based on publicly available information as of July 2026. Spotted an inaccuracy? Let us know: hello@soloflow.online