Comparison

SMS Antispammer vs Amazing Future Letters

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

Head to head
About

SMS Antispammer

Block unwanted SMS messages by filtering them based on custom keywords. Once activated, these messages are automatically moved to a spam folder, ensuring you won't receive notifications. Filtering is performed directly on your device for enhanced privacy.

Highlights
  • SMS filtering by keywords
  • Editable keyword list
  • Messages hidden in spam section
  • No notifications for filtered messages
  • Local filtering on device
Features
Read full description

Stop annoying SMS spam with this filter app. - SMS filtering by keywords. - Edit keywords list for filtering. Just download this app, turn on the filter in settings and such SMS will be hidden in spam section and you will not see or hear any notification about it. Filtering happens locally on your phone.

About

Amazing Future Letters

This app guides you through a structured reflection process to aid decision-making. Write four letters to your future self from different perspectives, then lock them for an hour to gain distance and clarity before making a final choice.

Highlights
  • Structured reflection process
  • Write letters to future self
  • Four distinct perspectives
  • Timed lock for reflection
  • Decision finalization
  • Post-decision reflection
Features
Read full description

Sometimes the hardest part isn’t making a choice — it’s allowing yourself space before it. Thoughts collide, emotions pull in different directions, and clarity feels just out of reach. You sense the answer is there, but rushing only makes it quieter. Amazing Future Letters turns decision-making into a structured reflection process. You choose a topic that’s been on your mind and write four letters to your future self — each from a different perspective: rational, emotional, cautious, and bold. Once you finish, access is locked for one hour. No edits, no revisiting — just a forced pause. When the timer ends, you come back with distance. You reread your own thoughts, notice what stands out, what feels true, and what doesn’t. From there, you make a final decision and lock it in. Later, you can return again to reflect on how it plays out in real life. The flow is simple: choose a topic → write 4 letters → lock for 1 hour → read → decide → revisit later. Clean visuals and subtle animations keep attention where it matters — on your thinking, not distractions. It’s not about speed. It’s about clarity. Try it once — and you might start hearing yourself a little more clearly.

Screenshots

SMS Antispammer2 screens
Amazing Future Letters4 screens

Verdict

The call

The clearest difference is price: Amazing Future Letters at Free against SMS Antispammer's $1.99. Amazing Future Letters also leads on update cadence (every 3 days vs every 38 months). SMS Antispammer's advantage is iOS requirement (14.0 vs 17). On ads, in-app purchases and device support 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

Amazing Future Letters is free to download; SMS Antispammer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SMS Antispammer ships an update every 38 months, Amazing Future Letters every 3 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
SMS Antispammer versus Amazing Future Letters: the parameters behind the verdict, then further details
ParameterSMS AntispammerAmazing Future Letters
Price$1.99Free — better
Rating—5.0 (25 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings—25 — better
Update frequencyEvery 38 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPod — betteriPhone
Requires iOS14.0 — better17
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperSpace In BoxElowen Prynn

In-app purchases

None

SMS Antispammer

No in-app purchases

None

Amazing Future Letters

No in-app purchases

Questions

Is SMS Antispammer free?
SMS Antispammer costs $1.99, with no in-app purchases.
Is Amazing Future Letters free?
Amazing Future Letters is free to download, with no in-app purchases.
Do SMS Antispammer or Amazing Future Letters have ads?
Neither SMS Antispammer nor Amazing Future Letters shows ads.
Which is updated more often, SMS Antispammer or Amazing Future Letters?
SMS Antispammer ships an update every 38 months, and Amazing Future Letters every 3 days. Most recently, SMS Antispammer was updated on November 6, 2026 and Amazing Future Letters on October 31, 2026.

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