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If you've narrowed your legal billing search to Bill4Time and TimeSolv, you've found two of the most respected dedicated billing tools for solo and small firms - both competitively priced, both strong on the trust accounting that keeps firms compliant. They overlap heavily, but they're built around slightly different ideas of what a billing tool should be. This review covers what each does, how they price, where they differ, and the one revenue moment both leave on the table.
Bill4Time, made by Paradigm (the company behind several legal tools, headquartered in Syracuse, NY), is a time-tracking and billing platform that has steadily added practice-management features. Today it offers one-click timers, expense tracking, customizable invoicing, online payments, a client portal, matter management, and IOLTA trust accounting with reconciliation - available in both cloud and on-premise versions.
What reviewers like: an intuitive interface, genuinely useful editable prebills, strong trust accounting, and responsive support. It's frequently praised as easy to adopt for a firm that wants billing plus a bit of case organization without a heavy platform.
Where it's weaker: some users find the mobile app less polished than the desktop version, and cite limitations around retainer handling and invoice formatting. Data migration from other tools generally requires the Pro or Enterprise tiers.
Pricing: advertised from around $39 per user per month, with higher tiers unlocking migration and more advanced features.
TimeSolv is a focused legal time-and-billing tool - it deliberately does billing rather than trying to run your whole practice. It offers flexible invoicing, trust accounting, batch billing, detailed reporting, and LEDES-format e-billing for corporate clients. It's hosted on AWS with strong uptime and security, and is well known for making migration off legacy systems like PCLaw painless.
What reviewers like: billing accuracy and flexibility, easy transitions from antiquated billing software, and responsive support. Firms that prioritize getting billing exactly right - especially those with corporate clients needing LEDES - tend to favor it.
Where it's weaker: it's not a full practice management system, so firms that also want robust case management, documents, and intake will need to pair it with another tool.
Pricing: TimeSolv Legal starts around $55 per month for a single user, paid monthly, with pricing scaling by users and features.
They overlap a lot - both do time tracking, invoicing, trust accounting, and payments well. The deciding factors:
Both sit in the dedicated-billing category rather than the all-in-one practice platforms. If you're not sure that's the right category for your firm, our legal billing software buyer's guide walks through the dedicated-vs-platform decision, and our Clio vs MyCase vs Filevine comparison covers the full-platform option. For a full breakdown, see the best bankruptcy law software for attorneys.
Here's the opportunity neither Bill4Time nor TimeSolv acts on. A billing tool knows the most valuable fact in your client relationship: the moment an invoice is paid in full. A client who has just paid their final bill on a matter that went well is at the absolute peak of satisfaction - the single best moment to ask for a Google review.
Neither tool asks. But both can trigger the ask. Connect Bill4Time or TimeSolv to a review tool through Zapier, and have the paid-in-full (or matter-closed) event fire an automated, bar-compliant SMS or email review request a day or two later. The request goes out at the perfect moment, every time, without anyone remembering.
That matters because reviews are the highest-ROI marketing a firm has - a top factor in ranking in Google's local 3-pack and the first thing prospects read before calling. (See how to get more Google reviews for your law firm.) Your billing tool already knows when each client is happiest; pairing it with review automation turns that knowledge into a compounding stream of new business.
A compliance note specific to law firms: review requests are governed by your state bar and ABA Model Rule 7.1. Ask former clients only, never offer anything of value in exchange (Rule 7.2(b)), and never script the review. A review tool built for law firms keeps the timing and templates inside these lines automatically.