Support
We read every message. Write to support@tersaai.com and we'll reply as soon as we can.
Please don't send prompts or personal data you'd rather keep private. Describing the problem is enough.
Frequently asked questions
Does TersaAi send my text anywhere?
No. Everything is processed on your device. TersaAi has no servers and never sends your content over the network.
Which devices are supported?
iPhone, iPad and Mac with iOS, iPadOS or macOS 26 or later. Smart mode needs a device with Apple Intelligence turned on. Other devices use Standard mode.
What's the difference between Smart and Standard mode?
Most of the cutting is done by rules in both modes. On supported devices, in English, Apple's on-device AI also helps trim your text (Smart mode). Standard mode works on any supported device, using rules alone.
How many tokens will I save?
Up to 85% fewer tokens on long, messy input. Savings depend on what you paste. Long logs, email threads and reports shrink the most. Text that is already tight stays about the same, and TersaAi tells you so. Savings were measured on English text; other languages are handled by rules alone and may save little.
Will it change my facts?
TersaAi checks that names, numbers, dates and file paths survive. Anything it drops is listed, so you can put it back. A result is never longer than what you gave it.
Are the token counts exact?
Counts for ChatGPT are exact (o200k tokenizer). Counts for Claude and Gemini are estimates and are marked with ≈.
How do I restore my purchase?
Open Settings in TersaAi and tap Restore Purchases, using the Apple Account you bought with. Family Sharing is supported.
How do I get a refund?
Refunds are handled by Apple. Go to reportaproblem.apple.com, sign in and choose TersaAi.
How do I delete my history?
In Settings, tap Delete All History. You can also turn history off, or have it deleted automatically after 7, 30 or 90 days.