Comparison
Timix.AI vs BigTime
BigTime is a mature, billing-heavy PSA built for accounting and professional-services firms that need native QuickBooks/Xero/Sage Intacct sync, multi-currency invoicing, DCAA compliance and resource planning — and it has native mobile apps. Timix.AI is a leaner, far lower-cost, AI-first time-and-profitability platform with a deeper task hierarchy, a built-in AI chat assistant from low tiers, and a no-card 90-day reverse trial. The verdict: pick BigTime if invoicing-to-accounting is the core of your business and you need a battle-tested PSA; pick Timix.AI if you want modern AI-assisted time tracking, profitability and budgeting at roughly a third of the price. Timix.AI also fits T&M billing the way agencies actually run it: bill against a frame order (blanket PO), choose which hours to invoice, write off the rest, and carry the unbilled forward.
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Pricing, side by side
| Timix.AI | BigTime | |
|---|---|---|
| Free plan | Free $0 — up to 5 users, unlimited projects | None (no perpetual free plan) |
| Free trial | 90-day full-access reverse trial, no credit card | Free trial available — BigTime's site now leads with 'Book a demo' |
| Entry paid tier (per seat/mo, annual) | Starter $7/mo (annual; $9 monthly) | Essentials $20/user/mo, billed annually (USD, verified on bigtime.net/pricing) |
| Mid tier (per seat/mo, annual) | Professional $15/mo (annual; $19 monthly) | Advanced — not publicly listed (contact sales) |
| Top self-serve tier (per seat/mo, annual) | Business $29/mo (annual; $36 monthly); Enterprise custom | Premier — not publicly listed (contact sales); Projector/Enterprise also sales-led |
| Seat model / minimum | Per seat, no seat minimum, no per-tier seat caps — "scales with you" | Per user; billed annually; no public hard seat minimum, but practical entry is sales-assisted |
02
Feature by feature
| Feature | Timix.AI | BigTime |
|---|---|---|
| AI assistant / chat Timix: AI chat from Starter+, allowance grows by tier. BigTime: AI Assistant included on all tiers (24/7 in-product help). | Yes | Yes |
| AI insights / predictions Timix: AI Insights, Business tier. BigTime: predictive profitability/utilization forecasting plus Resourcing & Analytics agents. | Yes | Yes |
| Profitability & margin (cost vs bill rates) Timix: dual cost+bill rates on all tiers; client margin roll-up reports Professional+. BigTime: custom cost & rate management surfaces at Premier. | Yes | Yes |
| Utilization & capacity Both supported. BigTime's deeper resource planning/skills allocation is a Premier feature. | Yes | Yes |
| Budgets + alerts Timix: soft + hard budget limits with alerts. BigTime: project budgeting gated to Premier tier. | Yes | Partial |
| Billing types (T&M / Fixed / OVH) Timix: explicit T&M, Fixed Price and Overhead (OVH). BigTime supports T&M and fixed-fee billing; OVH as a first-class type is unverified. | Yes | Partial |
| Project hierarchy depth Timix: 4-level Customer→Project→Task→SubTask with all time at SubTask. BigTime: project/task structure, generally shallower. | Yes | Partial |
| Time approvals Both. BigTime's multi-level approvals are a Premier-tier capability. | Yes | Yes |
| Client invoicing Timix: commercial invoices at Professional+ (not government-cleared e-invoicing). BigTime: native billing/invoicing core, multi-currency invoicing at Premier. | Partial | Yes |
| Native QuickBooks / Xero Timix: via Zapier/Make/Workato only. BigTime: native two-way QuickBooks, Xero and Sage Intacct sync. | No | Yes |
| Public API + webhooks Timix: Integration API + webhooks + Zapier/Make/Workato at Professional+. BigTime: API access gated to Premier; webhook support not clearly published. | Yes | Partial |
| Use Timix from your AI (MCP) Timix: official MCP server (Professional+) — Claude, ChatGPT, Cursor. BigTime: no official MCP server. | Yes | No |
| SSO / SCIM Timix: SSO & SCIM at Enterprise (sales-led). BigTime: SSO incl. from Essentials (Okta/Entra/Google), migrating SAML→OIDC; SCIM not publicly documented. | Partial | Partial |
| Custom fields Timix: custom fields from Starter+. BigTime: custom fields exist in-product but tier/availability not confirmed on the pricing page. | Yes | Unknown |
| Native mobile apps Timix: installable PWA (add to home screen) with offline time tracking — no native App Store/Play app. BigTime: native iOS & Android apps with offline entry, included in subscription. | Partial | Yes |
| Genuine free plan Timix: free forever (up to 5 users, unlimited projects). BigTime: no free plan — trial or paid only. | Yes | No |
03
Which should you choose?
Choose Timix.AI if…
- You want deep budgets and billing hierarchy without a Premier price tag — Timix gives you hard + soft budget limits with alerts and a 4-level Customer→Project→Task→SubTask hierarchy on lower tiers, while BigTime locks project budgeting to Premier.
- You want the lowest price — Timix Starter ($7) to Business ($29) lands at roughly a third of BigTime Essentials ($20) through Premier (~$45).
- You want AI chat baked in from a low paid tier plus AI Insights, without paying for a top PSA bundle.
- You need deep structure — a 4-level Customer→Project→Task→SubTask hierarchy with every time entry at SubTask level.
- You want to try before you buy with a 90-day, no-credit-card reverse trial and a genuine free forever plan.
Choose BigTime if…
- Invoicing-to-accounting is your core workflow — BigTime has native two-way QuickBooks, Xero and Sage Intacct sync; Timix relies on Zapier/Make/Workato.
- You need full client invoicing including multi-currency invoicing (Premier) — Timix only does commercial invoices, not cleared e-invoicing.
- Your team is mobile-first and wants native App Store/Play apps — BigTime ships native iOS and Android apps with offline entry.
- You need a proven, deep PSA with DCAA compliance, client portal, resource/skills planning and multi-level approvals.
- You want a longer track record and a larger install base — BigTime is an established PSA brand, while Timix.AI is newer.
04
Timix.AI vs BigTime, asked & answered
Is Timix.AI a good BigTime alternative?
Yes, if your priority is affordable, AI-assisted time tracking with deep project structure, profitability and budgets. Timix costs roughly a third of BigTime and includes AI chat on low tiers. BigTime remains stronger for native accounting sync, multi-currency invoicing and native mobile apps.
How does Timix.AI pricing compare to BigTime?
Timix runs $7 (Starter) to $29 (Business) per seat/month annually, with a free plan and 90-day no-card trial. BigTime's Essentials is $20/user/month billed annually; Advanced (~$35) and Premier (~$45) aren't published on its official page, so treat those figures as unverified.
Does Timix.AI integrate with QuickBooks or Xero like BigTime?
Not natively. BigTime offers native two-way sync with QuickBooks, Xero and Sage Intacct. Timix connects to accounting tools via Zapier, Make, or Workato connectors (Professional+) and a public API with webhooks, but has no first-party QuickBooks/Xero integration yet.
Does Timix.AI have a mobile app and a free plan like BigTime?
Timix has a genuine free forever plan (up to 5 users, unlimited projects) that BigTime lacks, and on mobile it's an installable PWA with offline tracking (not a native App Store/Play app). BigTime is the reverse: native iOS and Android apps with offline entry, but no perpetual free plan, only a trial.
BigTime data fetched from bigtime.net and help.bigtime.net, June 2026. Only the Essentials tier ($20/user/mo, billed annually) is publicly listed on BigTime's pricing page; higher tiers are sales-led, so we show them as 'contact sales' rather than estimate them.. Comparison provided in good faith for general information — verify current details on BigTime's own site before deciding. BigTime and other names are trademarks of their respective owners; this page is not endorsed by or affiliated with them. Sources: bigtime.net, help.bigtime.net, bigtime.net, help.bigtime.net, help.bigtime.net, help.bigtime.net, bigtime.net, capterra.com, softwareadvice.com.
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