Comparison

Nextbox vs Stamp Mail

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

AI Email Client and Assistant

Free

📊 Productivity

★ 5.03 ratingsView app →

About

Nextbox

Features

Read full description

Nextbox makes makes it quick and easy to maintain inbox zero. You don't have to be a superhuman to rock your email any more. Just scroll through your feed and emails are marked read as you see them. Pin the ones you want to follow up on later and the rest will drop below them when your feed refreshes.

About

Stamp Mail

This AI-powered email client automates tasks like drafting replies, prioritizing messages, and extracting to-dos. It offers an agent to retrieve information and reorganize your inbox using plain English commands. A special mode allows quick review and approval of automated changes.

Highlights

Automated email drafting
Email prioritization
To-do extraction
Email summarization
Information retrieval via AI agent
Inbox reorganization
Approve/reject agent changes

Features

Read full description

Stamp is the AI Email Client that handles your emails for you. Stamp can automatically draft replies, prioritize important emails, extract todos, generate summaries, and more! With Stamp Agent, you can retrieve important information, reorganize your inbox, or perform any other action in plain English. What's more, with Stamp Mode you can quickly swipe through changes the agent made while you were gone, approving or rejecting them. Get started today, and experience what it's like to have your own AI personal secretary. Privacy Policy: https://www.stampmail.ai/privacy Terms of Use: https://www.stampmail.ai/tos

Screenshots

Nextbox3 screens

Stamp Mail4 screens

Verdict

The call

The clearest difference is in-app purchases: Nextbox at none against Stamp Mail's 4. Stamp Mail's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stamp Mail sells 4 in-app purchases, starting at $20.00 per month. Nextbox asks for nothing beyond the download.

UpkeepUpdate frequency

Nextbox ships an update every 9 days, Stamp Mail every 2 weeks. The most recent releases landed on September 9, 2026 and July 4, 2026 respectively.

Scorecard2 real differences · 7 level

Nextbox versus Stamp Mail: the parameters behind the verdict, then further details
Parameter	Nextbox	Stamp Mail
Price	Free	Free
Rating	—	5.0 (3 ratings) — better
Number of ratings	—	3 — better
Update frequency	Every 9 days — better	Every 2 weeks
Ads	Yes	No — better
In-app purchases	No — better	Yes
Monetization	—	Freemium
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	14.0 — better	15.1
Further details — not scored
Size	22 MB	76 MB
Age rating	4+	4+
Developer	Next Level Coder, LLC	Stamp AI, Inc.

In-app purchases

None

Nextbox

No in-app purchases

4 purchases

Stamp Mail

Subscriptions4

Stamp Individual (Monthly)7 Days trial$20.001 Month
Stamp Business (Monthly)7 Days trial$50.001 Month
Stamp Individual (Annual)7 Days trial$191.991 Year

Show 1 more

Stamp Business (Annual)7 Days trial$479.991 Year

Questions

Is Nextbox free?

Nextbox is free to download, with no in-app purchases.

Is Stamp Mail free?

Stamp Mail is free to download, with in-app purchases available.

Do Nextbox or Stamp Mail have ads?

Nextbox shows ads; Stamp Mail does not.

Which is updated more often, Nextbox or Stamp Mail?

Nextbox ships an update every 9 days, and Stamp Mail every 2 weeks. Most recently, Nextbox was updated on September 9, 2026 and Stamp Mail on July 4, 2026.