Co-parenting app comparison

BestInterest vs ParentPact

A high-conflict co-parenting app that uses AI to filter hostile incoming messages and works even if only one parent uses it. ParentPact is a co-parenting app with tone-checked, immutable messaging, a shared calendar, expense tracking, and court-ready exports, priced per family.

The short version: BestInterest is free, or $9.99–$29.99/mo per subscribing parent. ParentPact starts free, tops out at $149.99 a year for the whole family, and its tone checker reviews every message before it is sent on every plan, including Free.

At a glance

BestInterest and ParentPact, side by side

Feature comparison as of 2026-10-12
FeatureParentPactBestInterest
PricingFree, or $79.99–$149.99/yr per familyFree, or $9.99–$29.99/mo per subscribing parent
Billed perPer family (one subscription covers both parents)Per parent (each parent who wants paid features subscribes)
Free tier Yes
Full messaging, calendar, and expenses; 3-month export window
Yes
Tone checker Flags and rewrites
Flags and suggests a calmer rewrite before you send (AI rewrites on Plus and Premium)
Flags and rewrites
Protect and up: Tone Guardian rewrites your draft (can be turned off); Message Shield filters hostile incoming messages
Court-ready export Yes
Timestamped, watermarked PDF; CSV on Premium
Yes
Verified Reports with an optional Certificate of Authenticity; Free gets CSV only
Shared calendar Yes Yes
Expense tracking Yes Yes
In-app calls Yes
Premium; every call is logged, never recorded
Yes
Anyone can answer; outbound minutes are capped below Protect Plus
Call recording No
Deliberately not offered
Yes
Protect Plus only, once the user enables it
Read receipts Yes
Always on; cannot be disabled
Partial
Shows whether a message was read, not when
Immutable messages Yes
No delete; 5-minute typo window, then locked
Yes
PlatformsiPhone (App Store); Android in progressiOS, Android, web

Pricing

What each app costs a family

BestInterest: The Free plan never expires and covers messaging, a shared calendar, expenses, a journal, CSV export and three AI coach sessions a day. Each parent buys their own paid plan: Connect $99.99/yr, Protect $149.99/yr, Protect Plus $299.99/yr (or $9.99, $14.99, $29.99 a month). The incoming-message filter and outgoing rewrite tool start at Protect; call recording is Protect Plus only.

ParentPact charges per family. One parent subscribes and the other gets full access at no cost, on every tier.

Free

$0

no card required

Unlimited immutable messaging across 8 channels, rule-based tone checker, shared calendar with iCal import, expense tracking with receipts, 3 months of PDF export, 2 GB storage.

Plus

$79.99/yr

or $7.99/mo

Everything in Free, plus the AI tone checker with rewrite suggestions, 12 months of PDF export, and 5 GB storage.

Premium

$149.99/yr

or $14.99/mo

Everything in Plus, plus in-app calls with a call log, unlimited export history, CSV export for your attorney, and 20 GB storage.

Two parents, one year. BestInterest: $99.99 or more if one parent subscribes, up to $599.98 if both parents take the top plan. ParentPact: free on the Free tier, $79.99 on Plus, or $149.99 on Premium, and that one subscription covers both parents.

Honest trade-offs

Where each app is stronger

Where BestInterest is stronger

  • Message Shield filters hostile language out of incoming messages before you read them, and keeps the original a tap away. Most co-parenting apps only check what the sender writes.
  • Works if your co-parent never joins: Solo Mode is on every plan, and Boundary Line (Connect and up) gives you a number your co-parent can text and call from their normal phone.
  • The Free plan never expires and runs on iOS, Android and the web.
  • Verified Reports can carry a Certificate of Authenticity that a reviewer checks against BestInterest's server copy.

Where ParentPact is stronger

  • One subscription covers both parents. One parent pays; the other gets full access at no cost.
  • The tone checker does not just flag a message. It suggests a calmer rewrite you can send with one tap.
  • Messages are immutable. Nothing can be deleted, and edits are limited to a 5-minute typo window that is logged.
  • Read receipts are mandatory for both parents, so "I never saw it" is never in dispute.
  • Every record exports as a timestamped, watermarked PDF, and Premium adds CSV for your attorney.
  • A real free tier: unlimited messaging, calendar, and expenses without a card.

Which one is right for you

Who should choose which

Choose BestInterest if…

Choose BestInterest if your co-parent won't use an app, or if what you need most is hostile incoming messages filtered before you read them, and you are willing to pay $149.99 a year or more for that yourself.

Choose ParentPact if…

Choose ParentPact if you want one subscription to cover both parents, a tone check on every outgoing message even on the Free plan, read receipts that are always on, and in-app calls that are never recorded. AI rewrite suggestions start at $79.99 a year for the whole family, versus $149.99 a year per parent for BestInterest Protect.

Before you ask

BestInterest vs ParentPact: your questions

Does BestInterest filter the messages I receive?

Yes. On Protect and Protect Plus, Message Shield reviews incoming messages and can restate hostile ones in neutral language, with the original kept behind a tap. ParentPact works on the other end: its tone checker runs on the sender's message before it is sent and suggests a calmer rewrite.

Do both parents have to pay for BestInterest?

No. Each parent picks their own plan, and a linked co-parent can stay on Free. But each parent who wants paid features pays separately. ParentPact charges one price per family, and one parent's subscription covers both.

Can I use BestInterest if my co-parent won't join?

Yes. Solo Mode works on every plan, and Boundary Line (Connect and up) lets your co-parent text and call a BestInterest number from their normal phone. If your co-parent won't install any app, that is BestInterest's clearest advantage.

Does BestInterest record calls?

Protect Plus ($29.99 a month or $299.99 a year) can record supported calls once the user turns it on, and the user is responsible for consent laws. ParentPact Premium includes in-app calls with a permanent call log, and calls are never recorded.

Which is cheaper, BestInterest or ParentPact?

Both have a free plan. BestInterest's AI tools start at $149.99 a year for one parent, or $299.98 if both parents want them. ParentPact Plus, with AI rewrite suggestions, is $79.99 a year and covers both parents.

One record. One subscription. Both parents.

Tone-checked messages, a shared calendar, and court-ready exports, priced per family.

Download on the App Store

Free to download · One subscription covers both parents · Android coming soon