Message Mammoth
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Guides · Updated November 2026
By Nicolas Zawadzki, who makes Message Mammoth, one of the apps compared here.
A Decipher TextMessage alternative for Mac
Decipher TextMessage is a capable, long-established exporter. This page sets out where Message Mammoth differs and when Decipher is the better choice.
Short answer. Message Mammoth is a Mac alternative that puts texts, WhatsApp and call records in one numbered PDF for one price. Decipher TextMessage covers texts, runs on Mac and Windows, and sells WhatsApp export separately as Decipher Chat. Choose Decipher if you need Windows.
Comparison
Decipher details come from its website in November 2026. "Not stated" means the website does not mention the feature, and the app may still have it.
| Message Mammoth | Decipher TextMessage | |
|---|---|---|
| Runs on | Mac | Mac and Windows |
| Price | $29.99 once | $29.99 once |
| License | On up to 3 of your Macs | 2 device activations (iPhone or iPad), unlimited computers |
| Refund | 30 days | 30 days |
| Reads | This Mac's Messages, or an iPhone over a cable | This Mac's Messages, or an iPhone backup |
| Included | Decipher Chat, sold separately at $19.99 | |
| Phone and FaceTime calls | Included | Not stated |
| One timeline across apps | Yes | Separate products |
| Formats | PDF, CSV, text | PDF, CSV, HTML, text |
| Date, time and contact on every message | Yes | Yes |
| A number on every message | Yes | Not stated |
| UTC offset on every message | Yes | Not stated |
| Cover page with filters and counts | Yes | Not stated |
| SHA-256 hashes | Yes | Not stated |
| Declaration template | Yes | Not stated |
| Track record | New | Hundreds of published reviews |
Where Message Mammoth differs
- One record across apps. If a dispute ran across texts, WhatsApp and calls, they can go in one date-ordered PDF. Each entry is labelled with its app.
- Details for citing and checking. Each message has a number and a full timestamp, and the cover page lists every filter applied.
- Comparing two dates. Copy the same source again later to see what is new, what was edited and what is no longer there.
- Review before buying. You can read every message free before you pay.
When Decipher is the better choice
- You use a Windows PC. Message Mammoth runs on Mac only.
- You want an HTML export.
- You prefer a product with a long record of customer reviews.
- You need texts from an iPad backup. Message Mammoth works from iPhones and Macs.
How to compare them yourself
Both apps offer a free way to look before you buy. Open the same conversation in each, then check that the first and last messages match what is on your phone and that the output has the details your lawyer asked for. Compare the result with the sample PDF.
It's free to preview every message and to try exports of up to 20 messages in total, calls and group events included. Unlimited exports are $29.99 once.
Decipher TextMessage, Decipher Chat, iMazing, Text2Store, ChatExport and TextPort belong to their respective owners. Message Mammoth is not affiliated with them. Check each vendor's website for current details.