This is an independent guide, not the vendor's site. Buttons lead to stellarinfo.com; if a link carries a referral code, this site may earn a commission at no extra cost to you, and it does not change the advice. Prices and terms were read on stellarinfo.com on 10 November 2026.
Stellar Merge Mailbox for Outlook costs $39.99 for the Standard edition, $129 for Technician and $199 for the Toolkit, each sold as a one year licence for a single system according to the vendor's buy page on 10 November 2026. Standard is enough for merging PST files; Technician adds online and non PST mailboxes; Toolkit adds repair, conversion and four more Outlook utilities.
Editions and prices
Prices below were read on the vendor's product and buy pages on 10 November 2026 and are in US dollars. Local prices may differ; the refund policy notes that regional and exchange rate differences are not grounds for a refund.
| Edition | Price | Term | Main use |
|---|---|---|---|
| Standard | $39.99 | 1 year licence | Merge or join PST files without duplicates |
| Technician | $129 | 1 year licence | Merge online, offline and identity folder mailboxes into one PST |
| Toolkit | $199 (struck list price $499) | 1 year licence | Technician plus six Outlook repair and maintenance tools |
What Standard covers
Standard is the edition most readers need. It merges or joins any number of PST files, removes duplicates on the criteria you choose, accepts password protected files, leaves out deleted and junk folders on request, and saves to a new or existing PST, an Outlook profile, Office 365 or Exchange. It also writes a log of each run.
What it does not do is read anything other than PST files, and it does not repair damaged ones. If your files open normally in Outlook and the job is purely consolidation, there is no reason to pay more. The full review covers how these features behave and where they stop.
What Technician adds
Technician includes everything in Standard and widens the input side. It can pull mail from Microsoft 365, Gmail, Yahoo and Outlook.com accounts, read offline DBX and NSF files, and take identity folders from more than twenty desktop clients, Thunderbird and Apple Mail among them. All of that ends up in a single PST.
The vendor positions it for people who want one consolidated backup of every mailbox they own, or for support staff who move users between clients. If you only ever deal with PST files, the extra $89 buys nothing you will use.
What Toolkit adds
Toolkit bundles the Technician edition with six separate Outlook programs. Its $199 price was shown against a struck list price of $499 on the buy page.
- PST repair, with export of recovered mail to several file formats, Microsoft 365 or Exchange
- OST to PST conversion
- Splitting a large PST by size, date range or mail ID
- Compacting a PST and extracting attachments to a folder
- Recovering a lost PST password
- Undeleting mail and attachments removed from Outlook
Toolkit makes sense when some of your PST files are damaged, because the merge program refuses corrupt files and the repair module is included. If only one file is damaged, compare the cost of buying a repair tool separately before choosing the bundle.
Licence terms the buy page states and the ones it leaves out
The data sheet describes the licence as single system, and every edition on the buy page is labelled 1 Year License. After payment you receive a download link and an activation key by email. The vendor advertises technical support 24 hours a day, five days a week.
The buy page does not say whether the licence renews automatically, what a renewal costs, or what happens to the program when the year ends. Ask the vendor before paying if that matters to you. The refund policy does say renewals are never refundable, and it gives 30 days on annual licences for a first purchase; the refund page lists every condition.
Coupons and discounts
This guide does not list coupon codes, because the vendor publishes none for this product. Its site footer links to a student discount page and a special offers page, and the Toolkit is already shown at a reduced price. Check those pages on the day you buy.
Be careful with discounted purchases: the refund policy excludes requests on a special offer and on part of a bundle, and it also excludes anything bought outside the vendor's own site. A cheap key from an unknown reseller loses the refund right entirely. If price is the deciding factor, the alternatives page lists other merge tools to compare.
Which edition to buy
- Healthy PST files only: Standard
- Mail in Gmail, Microsoft 365, Thunderbird or other clients: Technician
- Some PST files damaged, or you also need OST conversion or splitting: Toolkit
- Two small files and no duplicates to worry about: try Outlook's own import first
Try before choosing an edition
The demo previews the merged result. Buy only when it shows what you expect.
Frequently asked questions
How much is Stellar Merge Mailbox for Outlook?
On 10 November 2026 the vendor listed Standard at $39.99, Technician at $129 and Toolkit at $199. All three were sold as one year licences.
Is it a lifetime licence?
No lifetime option was listed for this product on the buy page. Every edition was labelled as a one year licence for a single system.
Does the licence renew automatically?
The buy page does not say. The refund policy states that renewals cannot be refunded, so check the order summary or ask the vendor's sales team before paying.
Is there a Stellar Merge Mailbox coupon code?
The vendor publishes no coupon for this product. Its site links to student discount and special offer pages; note that purchases on a special offer are excluded from refunds.
What does Technician add over Standard?
Technician adds mail sources that are not PST files: Microsoft 365, Gmail, Yahoo and Outlook.com accounts, DBX and NSF files, and identity folders from more than 20 desktop mail clients.
How is the licence delivered?
By email. After payment the vendor sends a download link and an activation key, which you enter in the program to unlock saving.