Terms of Service

1. Parties and subject

These terms are between the independent developer who builds and operates Demostra (“Demostra”) and the person using the app (“User”). There is no company behind Demostra; the service is provided by a natural person. Contact: info@demostra.app. By using the app you accept these terms.

2. What the service is

Demostra is a tool for testing what you have learned by explaining it in your own words, against a dated goal. The app maps the topics of your goal, closes the source and asks short questions, then reports the outcome as proven, blurry or revisit.

What it is not

• Demostra is not an educational institution. It does not provide course content or teachers.
• The app guarantees no outcome. Nothing it produces is assurance that you will pass an exam, win an interview, or that you are ready.
• Assessments are produced by artificial intelligence and can be wrong. The app deliberately never gives a “readiness percentage”; what it gives is a state, not a score.

3. Inseparable from the service: AI assessment

Demostra's core undertaking is to assess your explanation. That assessment cannot be produced without sending text to the AI provider, whose servers are outside Türkiye and the EU. The transfer abroad is therefore not an option within the service but the service itself.

For that reason the transfer rests not on explicit consent but on performance of these Terms. What is transferred, to whom, and with what risks is set out plainly in Privacy Notice §3.

If you do not accept these Terms, no account is created. This is not forced consent — no one can be compelled to enter a contract, and equally no one can be compelled to contract with someone who rejects their terms. If you do not accept, you should not use the service.

The only operation resting on consent is sharing dictation corrections; that is genuinely optional and refusing it affects no feature (Explicit Consent Text).

4. Eligibility: age

The service is for people aged 16 and over. You make this declaration when you register. Accounts found to belong to someone under 16 are closed and their data deleted.

We do not ask you to declare "I am over 18." Part of our audience is 16–17; making them sign a statement that isn't true does not make the contract valid — it only makes the problem invisible. Here is the honest version.

If you are under 18

Under Article 16 of the Turkish Civil Code, a minor needs the permission or ratification of their legal guardian to enter into a contract. So:

• For free use, your guardian's awareness is enough — we ask you to read this agreement together with them.
• A paid subscription requires your guardian's permission. By giving it, your guardian becomes a party to this agreement and is responsible for the subscription fee.
• We do not collect that permission separately, because the payment already passes through the store's own parental approval layer — see §6.

5. Account

• Registration requires a valid email address, verified with a 6-digit code.
• Keeping your credentials confidential is your responsibility.
• One person, one account. Sharing your account is not permitted.
• Your email is your account recovery address; password reset codes go there.

6. Subscription and payment

Paid tiers are billed through the Apple App Store and Google Play. These platforms act as the merchant of record: collection, invoicing and refunds run under their rules. Your card details never reach Demostra.

The developer earns under the mobile app developer exemption in Article 20/B (repeated) of the Turkish Income Tax Law. Accordingly no separate invoice is issued to you; your receipt from the store is the proof of payment.

A minor's payment

The payment contract is formed with the store, not with us, and both stores handle parental approval in their own layer:

• Apple: a Family Sharing Organizer must be 18 or older, pays for and authorizes every purchase initiated by a family member, and family members act as the Organizer's agents. Ask to Buy requires the Organizer's approval for anyone under 18.
• Google Play: a person who is a minor in their country must have their parent or guardian's permission to use Google Play and to accept its terms.

So the party who actually authorizes and pays for a 16–17-year-old's subscription is an adult. This does not remove our obligation — the guardian-permission condition in §4 still applies — but it shows where the approval is obtained in practice.

Refund and withdrawal details: Refund and Withdrawal Policy.

• Renewal: subscriptions renew automatically at the end of each period. You can turn renewal off in your store account's subscription settings.
• Price changes: prices may change. Existing subscribers are notified before a change takes effect.
• Founding members: users who joined during the beta have been promised permanent free access to all individual tiers. That promise does not cover corporate use.

7. Corporate use and seat entitlement

Use on behalf of an institution (school, course provider, company) is subject to a separate corporate agreement and is billed outside the app stores. Corporate terms:

• A seat is consumed when assigned. The moment a student is added to a space, one seat counts as used; the student leaving does not return the seat.
• Unused seats expire. They do not roll over, are not refunded and are not credited.
• Timing does not change the price. A student added mid-term consumes a full seat; no pro-rata discount applies.
• Hard cap and overbooking allowance. Once the contracted seat count is reached, adding stops. If the corporate contract defines a tolerance allowance, adding continues within it, and the billing point for excess seats is set in that same contract. The tolerance rate and billing period are written in the organisation's own contract.

The institution cannot access students' data. What a moderator sees are in-space facts: attendance, presence time and proof count. A student's goals, notes and check-in answers are never exposed to the institution.

8. Acceptable use

The following are prohibited:

• Reverse engineering the service, exploiting it with automated tools, attempting to bypass rate limits.
• Accessing another person's account or using their identity.
• Entering unlawful, abusive content or content that infringes third-party rights.
• Artificially influencing rankings or proof records (simultaneous multiple devices, automated answer generation, repeating the same answer).

Integrity checks only eliminate records that are physically impossible, and enforcement applies to the record, not the person: an eliminated participation does not enter the ranking, the user is not removed from the community, and the reason is told to them.

There is no free-text feature between members (no chat, messages or comments), so user-content moderation is not required inside a space.

9. Content and intellectual property

The text, goals and explanations you enter belong to you. Demostra processes them only to deliver the service; it does not take ownership, sell them, or use them for advertising.

The app itself, its interface, brand and the question/assessment mechanism belong to Demostra.

Sharing dictation corrections is optional and off by default. When enabled, only the misheard phrase → correct term pair is shared; the sentence you spoke is not sent.

10. Availability

The service is provided “as is”. Temporary interruptions may occur for maintenance, updates or technical reasons. An outage at the AI provider may temporarily suspend assessment features.

11. Limitation of liability

To the extent permitted by applicable law, Demostra is not liable for indirect damages arising from use of the service. In particular:

• Exam, interview or presentation outcomes,
• An AI assessment turning out to be wrong,
• The user losing their own data (including by deleting their account).

Your statutory consumer rights are not affected by this clause.

12. Termination

You can delete your account at any time (Settings → Delete account, or the account deletion page). In case of serious breach of these terms Demostra may close an account; where possible, notice is given first.

13. Changes

These terms may change. Material changes are announced in the app with an effective date. Continuing to use the service after a change means you accept it.

14. Governing law and disputes

These terms are governed by the laws of the Republic of Türkiye. For consumer disputes, the Turkish Consumer Arbitration Committees or Consumer Courts have jurisdiction depending on the amount; as a consumer, your right to apply to the authorities where you live is reserved. If you reside in the European Union, your rights under your own country's consumer law are unaffected.

15. Contact

info@demostra.app · Privacy Notice · Refund policy · Delete account