If you’re searching “prison messaging app,” you’ve probably already run into the problem: every facility seems to use a different system, none of them explain anything clearly, and you just want to know which one will actually let you send a message to your person and have them get it. Here’s the short answer: the app that works is the one your specific facility allows. But within that, you have choices. This post compares the two most common setups — facility-contracted apps versus independent services — so you can decide what’s worth your time and money.

The two kinds of prison messaging apps

First, understand the split. Most facilities in the U.S. and Canada contract with one major company — often GTL (now ViaPath), Securus, or JPay — to handle all digital communication. If your facility uses one of those, you have to use their app. You don’t get to pick. But there is a second category: independent services that work alongside the facility’s system. These are third-party platforms that let you send messages online, and then they deliver them to the facility via their own process. InmateDB is one example. The key difference is control. With a facility-contracted app, your message goes directly into the inmate’s tablet or kiosk within that system. With an independent service, the message has to go through a review process before it reaches the inmate.

Cost: what you actually pay

Facility apps are notorious for hidden fees. You might pay $0.25 to $0.50 per message, or buy a “stamp” pack that expires. Some charge a monthly fee just to have an account. It adds up fast if you write daily. Independent services tend to simplify pricing. For example, InmateDB charges $19.99 per month per inmate, with a 5-day free trial for each new inmate you add. That covers unlimited messages, photos, and letters sent online. No per-message fees. The catch is that independent services cost the same every month regardless of how much you use them, while facility apps let you pay only when you send something. If you send one message a week, the facility app might be cheaper. If you write every day, the flat monthly fee of an independent service likely saves you money. Do the math based on your own habits.

Speed: what a normal timeline looks like

Facility apps usually deliver within minutes — as long as the facility’s network is up and the inmate has their tablet. But “as long as” does a lot of work. Tablets get confiscated during count, lockdowns pause everything, and sometimes a message sits in a queue for hours. Families report 15 minutes to 4 hours on average. Independent services take longer because they have to go through an external review. InmateDB, for instance, sends messages through a process that typically takes 24 to 48 hours. That sounds slow, but consider this: a physical letter takes 3 to 10 days. So an independent app is still faster than mail, just not instant. The real question is whether you need quick back-and-forth or if you’re okay with daily updates. If your person expects immediate replies, an independent app will frustrate both of you. If you’re replacing letters, it’s a huge upgrade.

What the inmate actually sees and does

With a facility-contracted app, the inmate gets a notification on their tablet, reads your message, and can reply from the same app. It feels like texting, but with a delay. With an independent service like InmateDB, the inmate receives your message through the facility’s regular message delivery system — sometimes printed out, sometimes loaded onto their tablet, depending on the facility. They can reply, but the reply comes back through the independent service’s website or app, not through the facility’s system. This means the inmate has to learn two interfaces: the facility’s tablet system and the independent service’s reply method. Some facilities allow inmates to use the independent service directly on their tablet. Others don’t. You’ll need to check with the facility or the independent service’s support team to confirm how replies work at your specific location. This is the part that trips most people up — they assume if they can send, the inmate can reply the same way. That’s not always true.

What goes wrong the first time

Common first-time problems: You sign up, send a heartfelt message, and then nothing happens for a day. You start worrying it didn’t go through. Then you check the facility’s rules and realize your message was flagged because you used a word on their blocked list (words like “cigarettes” or “meeting” can trigger review). Or you find out the inmate never got it because the facility doesn’t allow that independent service after all. The fix: before you pay anything, call the facility’s mailroom or check their inmate handbook. Ask exactly which messaging services are approved. If they say “only GTL,” then that’s your only option. If they say “any service that does mail processing,” then independent services are fair game. Also, use the trial period. InmateDB offers 5 days free per inmate. That’s enough time to send a few messages and see if they actually arrive before committing to a month.

When an independent app makes sense

Independent services shine in two situations. One: your facility charges outrageous per-message fees and you write a lot. A flat monthly fee can cut your costs by more than half. Two: you want features the facility app doesn’t offer. InmateDB, for example, gives inmates access to AI chat, email, news, lessons, trivia, and a private journal — all through their account. That’s stuff the facility’s app won’t have. If your person is bored or wants to use their tablet for more than just messaging, that extra value matters. The downside is that you’re paying for features the inmate might not use. So ask them first. “Would you use a journal or trivia or news if I got you this subscription?” If they say yes, it’s worth it. If they say they just want to text, stick with the facility app.

Where to start

If you’re still unsure, here’s what I’d actually do: call the facility and ask two questions — “What messaging apps are approved?” and “Can inmates receive messages from third-party services like InmateDB?” If they say yes to the second, sign up for the free trial and send a test message. See how long it takes. See if the inmate gets it. If it works, you have a solid option. If not, you’re out nothing. If they only allow the facility’s app, then use that — but set expectations with your person that you’ll write as often as the cost allows. No app is perfect, but one of them will work for your situation. The key is knowing which one before you spend money. InmateDB has a clear pricing page and support team that can answer facility-specific questions if you’re not sure. That’s more than most facility apps offer.