Allegrow vs Instantly
Choosing between Allegrow and Instantly usually comes down to how each one deals with the addresses your list actually struggles with. Allegrow is a catch-all verifier with sender reputation and inbox placement tooling attached. Instantly is a cold email sending platform where verification is one step inside the campaign flow. Below we walk through how they price, what they do with catch-all addresses, and how accurate each claims to be, and we show where Giggal.ai lands on the same list so you have a third number to weigh.
How Allegrow, Instantly and Giggal.ai compare
| Allegrow | Instantly | Giggal.ai | |
|---|---|---|---|
| Category | Catch-all specialist | Finder & outreach platform | Catch-all and SEG verifier |
| Resolves catch-all | Yes | Yes | Yes |
| Catch-all cost | 1 contact from the plan allowance | 0.25 credit per lead, the same as any other verification | 1.5 credits in the same run, 2 credits standalone |
| Secure email gateways | Yes | No | 15 gateways |
| Price at 10,000 | $139/mo | $197/mo | $9.90 |
| Price at 100,000 | $1,340/mo | Quote | $76 |
| Price at 1,000,000 | $1,340/mo | Enterprise | $680 |
| Credit expiry | Plan allowance is monthly; the trial expires after 14 days | Plan credits reset monthly | Credits never expire, with no condition. |
| Free tier | 14-day trial covering up to 1,000 addresses | Not published | 1,000 credits, no card, usable on bulk |
| Charges for unknown results | - | - | No |
| Accuracy figure | Claims 99% | - | Claims 98.5% |
Every price and policy here comes from the vendor's own pricing. Where a tool does not sell by volume, the cell shows "Quote only", "Per seat" or its monthly plan price instead.
How Allegrow and Instantly handle catch-all
Allegrow resolves catch-all addresses to valid or invalid through a signal-based process rather than SMTP probing, and names Mimecast and Proofpoint. Instantly returns catch-all addresses as Valid, Invalid or Risky, and does not contact the Risky ones by default. Catch-all domains accept mail for every name, so a normal check cannot tell a real mailbox from a dead one, and this is usually where a list quietly loses good contacts.
How Giggal.ai handles catch-all. Giggal.ai resolves catch-all addresses to a real deliverable or undeliverable result at 1.5 credits in a run, or 2 standalone.
Allegrow vs Instantly pricing
Allegrow is sold by monthly plan, from $139/mo for 10,000 verifications a month. Instantly is sold by monthly plan, from $197/mo for 10,000 verifications a month. Both numbers come straight from each vendor's own pricing, so put them next to the volume you send each month.
How Giggal.ai prices it. Giggal.ai publishes a flat pay-as-you-go price, $9.90 at 10,000, $76 at 100,000 and $680 at a million, with credits that never expire.
Secure email gateway support
On enterprise domains a gateway like Mimecast, Proofpoint or Barracuda often sits in front of the mailbox and blocks the usual check. Allegrow says it verifies behind those gateways, and Instantly does not.
How Giggal.ai handles gateways. Giggal.ai detects 15 named secure email gateways including Mimecast, Proofpoint and Barracuda, and returns a real result on addresses behind them.
Credits, free tiers and expiry
Allegrow plan allowance is monthly; the trial expires after 14 days, and offers 14-day trial covering up to 1,000 addresses to start. Instantly plan credits reset monthly, and lists no free tier.
How Giggal.ai treats credits. Giggal.ai credits never expire, it does not charge for unknown results, and every list starts on 1,000 free credits with no card.
Why teams pick Giggal.ai over both
Allegrow and Instantly each leave a pile of catch-all and gateway-protected addresses unconfirmed. Giggal.ai returns a real result on those at 1.5 credits, verifies behind 15 secure email gateways, and publishes a flat $9.90 per 10,000 with credits that never expire.
Verify 1,000 emails freeFrequently asked questions
It depends on your list. Allegrow suits teams that want catch-all resolution and sender reputation monitoring from one vendor. Instantly suits teams that want verification to happen automatically as leads enter a campaign. If catch-all resolution and secure email gateway coverage matter most, Giggal.ai handles both at $9.90 per 10,000.
Allegrow is sold by monthly plan, from $139/mo for 10,000 verifications a month. Instantly is sold by monthly plan, from $197/mo for 10,000 verifications a month. Giggal.ai is $9.90 at 10,000, $76 at 100,000 and $680 at a million, with credits that never expire.
Allegrow returns a result on catch-all addresses. Instantly returns a result on catch-all addresses. Giggal.ai resolves catch-all to a real deliverable or undeliverable result at 1.5 credits in a run and also verifies behind 15 secure email gateways.
Giggal.ai is built for the hard addresses both tend to skip. It resolves catch-all to a real result at 1.5 credits, verifies behind 15 secure email gateways, and publishes a flat price of $9.90 per 10,000 with credits that never expire. You can run a list on 1,000 free credits, no card.
Yes. Giggal.ai gives 1,000 free credits with no card, usable on a bulk upload, so you can run the same list you would test in Allegrow or Instantly and compare the catch-all rows.
Related comparisons
Want a direct comparison with Giggal.ai? See the Allegrow alternative and Instantly alternative pages, or compare every verifier.